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Natasha2012 [34]
3 years ago
5

If each unit is equivalent to 1 square inch, how many square inches of matting are used? A. 32 sq. Inches B. 36 square inches C.

40 square inches or D. 72 square inches

Mathematics
1 answer:
lidiya [134]3 years ago
4 0

Answer:

B. 36 square inches

Step-by-step explanation:

we know that

The area of the mat is equal to the area of the rectangle containing a mat and a picture minus the area of the picture

The area of the picture is equal to the area of two trapezoids plus the area of the central rectangle

step 1

Find the area of the rectangle containing a mat and a picture

A=(12)(6)=72\ in^2

step 2

Find the area of the picture (two trapezoids plus the area of the central rectangle)

A=\frac{1}{2}(4+2)(2)+\frac{1}{2}(4+2)(2)+(6)(4)

A=36\ in^2

step 3

Subtract the areas

72-36=36\ in^2

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