A landscaping company is laying a triangular flower bed. The height of the trangle is 15ft. What lengths of the base will make the area at least 255ft squared?

Answer 1

A=(1/2)*a*h

A=255 - Area
h=15 - hight
a - lenght of base

255=(1/2)*a*15 Multiply with 2

510=15*a Divide with 15

a=510/15=34

a=34ft

Checking of results:
A=(1/2)*a*h
A=(1/2)*34*15
A=(1/2)*510
A=255ft squared