larapoghosyan91
02.03.2021 •
Mathematics
A square picture frame has a diagonal distance of √128 inches. What is the perimeter of the picture frame? (High School Geometry)
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Ответ:
32
Step-by-step explanation:
Ответ:
A) 81 sq units
Step-by-step explanation:
Area of a trapezoid = one-half of height multiplied by the sum of the bases (the bases are the parallel sides)
the problem gives us all the values we need:
height = 9
smaller base is 'x' which is 7
larger bases is 2y+x which is 2(2)+7 = 11
A = 1/2·(9)(7+11)
= 1/2·9·18
= 9·9 which is 81 sq units