Area formula of a triangle is: A = [tex] \frac{1}{2} [/tex]bh We know the are and the height, so substitute to find the base 900 m² = [tex] \frac{1}{2} [/tex] × b × 60 m 900 = 30b Divide by 30 to isolate b [tex] \frac{900}{30} = \frac{30b}{30} [/tex] 30 and 30 cancels out b = 30 m
