obliviousho2018
06.03.2020 •
Mathematics
The length of a rectangle is 12 cm more than its width. Find the
area of the rectangle if its perimeter is 100 cm.
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Ответ:
Dimensions of the rectangle (width and length) are 19 cm and 31 cm respectively.
Step-by-step explanation:
Step 1: Given that the perimeter = 100 cm, let width be x cm and then length = 12 + x.Perimeter of a rectangle = 2(length + width)
100 = 2(x + 12 + x)
100 = 4x + 24
4x = 100 - 24 = 76
∴ x = 76/4 = 19 cm
∴ Length = 19 + 12 = 31 cm
Ответ:
subtract sinx to finsih