2 Answers

Parag Patel · Answer 1 · 2021-06-19T10:53:14+0000

Answer:
39ft^2

Explanation:

This is a rectangle missing a piece which looks like a triangle.

Find the area of the rectangle and subtract the area of the triangle.

Rectangle:

$A=l*w\\A=(9ft)(5ft)\\A=45ft^2$

Triangle:

$A=(hb)/(2)\\ A=((3ft)(4ft))/(2)\\ A= (12ft^2)/(2)\\ A=6ft^2$

Now subtract the area of the triangle from the area of the rectangle.

45ft^2-6ft^2=39ft^2

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