The roof of the classroom is composed of 6 equal isosceles triangles whose vertices meet in the center of the roof. If the inclined edges measure 20 feet and the height of the roof is 4 feet, what is the number of square feet of galvanized iron sheet necessary to cover the roof? (Disregard the waste in lapping, cutting, etc.)

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A: We know that, 1 ft=12 in 1 ft2=144 in2 Formula of area of parrallelogram=height×base

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Q: The area of a regular 11-gon is approximately 2706.67/ square mm. Find the perimeter if the apothem…

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A: This is a problem of approximation, projection, Calculus etc.

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A: Given query is to find the area of roof B.

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A: base of the triangle = 216 - 9 =2 6 The dark blue part shows the amount of water in the tank at t…

Q: A 0.500m long hexagonal concrete shaft measuring 20.0cm across the corners has a triangular hole…

A: Given data :  Length of the shaft , h = 0.500 m                                      = 50 cm  side…

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A: The given question can be solved as shown in step2

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A:

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A: We have to find the number of hedge plants required.

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Q: A right rectangular prism has a length of 2 1/2 feet, a width of 3 feet and a height of 1 1/2 feet.…

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Q: One day I was walking there and measured its dimensions. It is shaped like a rectangle with a…

A: Given, length of the rectangle = l = 105 m Width of the rectange = w = 68 m Then radius of the semi…

Q: Students play table tennis in a rectangular room that is 15 feet by 25 ft. There is 8 feet of floor…

A: The objective of the question is to find the area of the floor that is not covered by the table.