Recall that are of triangle is just
A = (1/2)bh
where
b = base
h = height
It was said that the base is half of the height, or b = (1/2)h. Substituting to the formula,
A = (1/2)(1/2)h*h
121 = (1/4)*h^2
484 = h^2
h = 22 m
Solving for the base,
b = (1/2)*22 = 11 m
Hope this helps :3
a triangular traffic island has a base half as long as its height. the island has an area of 121m^2. find the base and the height.
1 answer
1 answer