What is the approximate area to be convered by the window in square centimeters?
A.58.12 square centimeters.
B. 40.00 square centimeters.
+130516 The pentagon is composed of 5 congreunt isosceles triangles....
We can find the length of one of the equal sides of one of these triangles, thusly
x / sin90 = 4/ sin(54) where x is one of the equal sides of an isosceles triangle
So x = 4/sin(54)
And using trig.....the total area is given by:
5(1/2) (4/sin(54))^2 * sin(72) = about 58.12 cm^2 = "A"
