lucyluckydragneel lucyluckydragneel

Today at 2:03 PM
Mathematics

Answered

The height of a triangle is 7cm longer than its base the area of the triangle is 60 cm^2 what is the base of the triangle

Answer :

kphung76127 kphung76127

Today at 2:09 PM

1/2(x)(x+7)=60
x(x+7)=120
x^2+7x-120=0
(x+15)(x-8)
x must equal -15 or 8. Since it cannot be negative, the base is 8cm

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