a.
To estimate and explain which figure has the greater side length.
a.

Answer to Problem 38E
The
Explanation of Solution
Given information:
Sides of the square is
Sides of the triangle is
The triangle has greater side length as the variable has a coefficient of 5 as compared to the coefficients of variable of the side of the square which is 2 and 3.
Hence,
The triangle has the greater side length.
b.
To find the length of the sides and perimeter of each figure.
b.

Answer to Problem 38E
Side length of square is 9units and side length of triangle is 12 units.
Perimeter of square and triangle is 36 units.
Explanation of Solution
Given information:
Sides of the square is
Sides of the triangle is
Formula used:
Perimeter of the square is
Perimeter of the triangle is
Calculation:
Sides of the square is
Since, all the four sides of the square must be same.
Hence,
So, the sides of square is obtained as:
Sides of the triangle is obtained as:
Perimeter of square is:
Perimeter of triangle is:
Hence,
Side length of square is 9 units and side length of triangle is 12 units.
Perimeter of square and triangle is 36 units.
Chapter 3 Solutions
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