Question

You may remember that the area of a triangle is A=12B⋅H, where B is the base of the triangle and H is the height.

Answer 1

Answer:

b = 6

Step-by-step explanation:

The area of a triangle is

A = 1/2 bh

9 = 1/2 *(2h) * h

9 = h^2

Take the square root of each side

3 =h

The base is 2h

b = 2(3)

b = 6

Answer 2

Answer:

6

Step-by-step explanation:

Assuming that the base is b and the height is h:

$\dfrac{bh}{2}=9 \\\\b=2h$

Substitute:

$\dfrac{2h(h)}{2}=9 \\\\h^2=9 \\\\h=3 \\\\b=2h=6$

Hope this helps!