if a rectangle has 144 units and the width is 10 units more than the length. Then how long are the length and width?
if a rectangle has 144 units and the width is 10 units more than the length.
Then how long are the length and width?
A = Length x Width
W = Length + 10 (L) • (L +10) = 144
L2 + 10L = 144
L2 + 10L – 144 = 0
(L +18)(L – 8) = 0
L = –18 discard, a rectangle cannot have negative length
L = 8
W = L + 10
W = 18
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