Question

Arianne is taking a geometry course and is working with the area of triangles. She knows the area and the height but needs to find the base. Rearrange the following equation for b, where A is the area, b is the base, and h is the height of the triangle.

A = one half b times h

A.b = 2A − h
B.b equals two times A over h
C.b = 2A + h
D.b = 2Ah

Answer 1

The Answer is B. b equals two times A over h

Hope This Helps!

Answer 2

B

Explanation:

Area of a triangle is given by the formula:

`A=(1)/(2)bh`

Now, we need to solve for b. We multiply the right side, cross multiply, and follow rules of algebra to isolate b. Shown below:

`A=(1)/(2)bh\\A=(bh)/(2)\\2A=bh\\b=(2A)/(h)`

Thus, b is 2 times A over h, the answer choice B is right.