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