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A rectangle is a four-sided figure that has two sets of parallel sides, so that we have two sides of one length and two sides of another length; a square is just a special case of a rectangle in which all four sides are the same length. Therefore, the procedure for calculating area is the same no matter whether we are dealing with a rectangle or a square. The area of a rectangle is calculated as follows: Area = base x height = b × h In this formula, the base is the width of the rectangle and the height is simply how tall the rectangle Is. For example, if we have a rectangle that is 20 centimeters wide and 10 centimeters tall, its area can be calculated as follows: Area = 20 cm x 10 cm = 200 cm² Note the superscript '2' In our answer; this is because we have multiplied centimeters by centimeters. In economics, we are more likely to be dealing with quantities bought or sold and prices, so don't worry about it too much for our discussion. The area of a triangle A triangle is really just a rectangle cut in half, so our formula Is Just ½ times the formula for the area of a rectangle: Area ==== ½½ xbx h For example, the area of a triangle that is 18 units tall and 40 units wide would be calculated as follows: Area === 1 × 40 × 18 = 40×18 2 360 units² Use the data in the table below to answer the following questions. X-variable Y-variable 8 Point A 8 30 5 B 5 0 4 40 4 CDE 8 3 F 30 8 3 G 0 HD Н Plot the points DHE on the graph. Instructions: Click the 3-point shader tool called "DHE" and then click on the graph. This will place a triangle on the graph. Click and drag each of the end points of the shaded area until the triangle highlights the desired region. Y 4 3- 2. 0 10 20 X 30 40 A DHE Calculate the following area: Area DHE = units2

A rectangle is a four-sided figure that has two sets of parallel sides, so that we have two sides of one length and two sides of another length; a square is just a special case of a rectangle in which all four sides are the same length. Therefore, the procedure for calculating area is the same no matter whether we are dealing with a rectangle or a square. The area of a rectangle is calculated as follows: Area = base x height = b × h In this formula, the base is the width of the rectangle and the height is simply how tall the rectangle Is. For example, if we have a rectangle that is 20 centimeters wide and 10 centimeters tall, its area can be calculated as follows: Area = 20 cm x 10 cm = 200 cm² Note the superscript '2' In our answer; this is because we have multiplied centimeters by centimeters. In economics, we are more likely to be dealing with quantities bought or sold and prices, so don't worry about it too much for our discussion. The area of a triangle A triangle is really just a rectangle cut in half, so our formula Is Just ½ times the formula for the area of a rectangle: Area ==== ½½ xbx h For example, the area of a triangle that is 18 units tall and 40 units wide would be calculated as follows: Area === 1 × 40 × 18 = 40×18 2 360 units² Use the data in the table below to answer the following questions. X-variable Y-variable 8 Point A 8 30 5 B 5 0 4 40 4 CDE 8 3 F 30 8 3 G 0 HD Н Plot the points DHE on the graph. Instructions: Click the 3-point shader tool called "DHE" and then click on the graph. This will place a triangle on the graph. Click and drag each of the end points of the shaded area until the triangle highlights the desired region. Y 4 3- 2. 0 10 20 X 30 40 A DHE Calculate the following area: Area DHE = units2

ENGR.ECONOMIC ANALYSIS
ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN:9780190931919
Author:NEWNAN
Publisher:NEWNAN
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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A rectangle is a four-sided figure that has two sets of parallel sides, so that we have two sides of one length and two sides of another length; a square is just a special case of a rectangle in which all four sides are the same length. Therefore, the procedure for calculating area is the same no matter whether we are dealing with a rectangle or a square. The area of a rectangle is calculated as follows: Area = base x height = b × h In this formula, the base is the width of the rectangle and the height is simply how tall the rectangle Is. For example, if we have a rectangle that is 20 centimeters wide and 10 centimeters tall, its area can be calculated as follows: Area = 20 cm x 10 cm = 200 cm² Note the superscript '2' In our answer; this is because we have multiplied centimeters by centimeters. In economics, we are more likely to be dealing with quantities bought or sold and prices, so don't worry about it too much for our discussion. The area of a triangle A triangle is really just a rectangle cut in half, so our formula Is Just ½ times the formula for the area of a rectangle: Area ==== ½½ xbx h For example, the area of a triangle that is 18 units tall and 40 units wide would be calculated as follows: Area === 1 × 40 × 18 = 40×18 2 360 units² Use the data in the table below to answer the following questions. X-variable Y-variable 8 Point A 8 30 5 B 5 0 4 40 4 CDE 8 3 F 30 8 3 G 0 HD Н Plot the points DHE on the graph. Instructions: Click the 3-point shader tool called "DHE" and then click on the graph. This will place a triangle on the graph. Click and drag each of the end points of the shaded area until the triangle highlights the desired region. Y 4 3- 2. 0 10 20 X 30 40 A DHE Calculate the following area: Area DHE = units2
Transcribed Image Text:A rectangle is a four-sided figure that has two sets of parallel sides, so that we have two sides of one length and two sides of another length; a square is just a special case of a rectangle in which all four sides are the same length. Therefore, the procedure for calculating area is the same no matter whether we are dealing with a rectangle or a square. The area of a rectangle is calculated as follows: Area = base x height = b × h In this formula, the base is the width of the rectangle and the height is simply how tall the rectangle Is. For example, if we have a rectangle that is 20 centimeters wide and 10 centimeters tall, its area can be calculated as follows: Area = 20 cm x 10 cm = 200 cm² Note the superscript '2' In our answer; this is because we have multiplied centimeters by centimeters. In economics, we are more likely to be dealing with quantities bought or sold and prices, so don't worry about it too much for our discussion. The area of a triangle A triangle is really just a rectangle cut in half, so our formula Is Just ½ times the formula for the area of a rectangle: Area ==== ½½ xbx h For example, the area of a triangle that is 18 units tall and 40 units wide would be calculated as follows: Area === 1 × 40 × 18 = 40×18 2 360 units² Use the data in the table below to answer the following questions. X-variable Y-variable 8 Point A 8 30 5 B 5 0 4 40 4 CDE 8 3 F 30 8 3 G 0 HD Н Plot the points DHE on the graph. Instructions: Click the 3-point shader tool called "DHE" and then click on the graph. This will place a triangle on the graph. Click and drag each of the end points of the shaded area until the triangle highlights the desired region. Y 4 3- 2. 0 10 20 X 30 40 A DHE Calculate the following area: Area DHE = units2
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