Question

What is the area, in square units, of the polygon shown here? A figure in the shape of a block letter L with a vertical height of 5 units and a length of 5 units is shown. The length of the top of the L is 2 units and the height of the right side of the L is 1 unit. 10 units2 13 units2 15 units2 18 units2

Answer 1

The answer is 13 units

Explanation:

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Answer 2

We can first calculate the area of the square ( 5 x 5 units ) and then subtract the area of the rectangle ( 3 x 4 units ).
A = 5² - ( 3 · 4 ) = 25 - 12 = 13 units²
Or we can find the sum of two rectangles ( 4 x 2 units and 5 x 1 unit ) :
A = 4 · 2 + 5 · 1 = 8 + 5 = 13 units²
Answer: B ) 13 units²