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
1 answer:
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

step 2
Find the area of the picture (two trapezoids plus the area of the central rectangle)


step 3
Subtract the areas

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