A triangle with a base of 9 meters has an altitude of 12 meters. Which would give the area of the triangle? A. 3.14 x 9 x 12
B. įx9x12
C. 2 x (9 + 12)
D. 2 x 9 x 12
OE x9x1x12

54

Step-by-step explanation:

To find the area of a triangle use the formula a = 1/2bh

The altitude is the same as height so we can substitute 12 for h and 9 for b

Now the equation will become

a = 1/2 · 9 · 12

When you multiply it, it become 108/2 = a simplified to a = 54