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The perimeter of a rectangle with a diagonal of 15cm is 42. Find the width

User Jellio
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12 votes

Answer:

width = 6 cm

Explanation:

since the diagonal is 15, and since both a rectangle has both sides, be double the diagonal.

15 x 2 = 30

diagonal (both sides) = 30

since we know the full perimeter and are looking to find the width, we will subtract both sides of the diagonal from the perimeter.

42 - 30 = 12

width (both sides) = 12

in order to get the width of one side, we will need to divide it in half.

12 / 2 = 6

width = 6 cm

hope this helps :)

User Bradson
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