Question

jazlyn wants to purchase a triangular trampoline. what is the formula for finding the area of a triangle? $a = 2bh$ $a = bh$ $a=left(\frac{b_1 + b_2}{2}
ight)h$ $a=\frac{1}{2}bh$

Explanation:

Step1: Recall area - related knowledge

The area of a triangle is half of the product of its base and height.

Step2: Analyze each option

• Option A: $A = 2bh$ is incorrect as it over - estimates the area.
• Option B: $A=bh$ is the formula for the area of a rectangle, not a triangle.
• Option C: $A = (\frac{b_1 + b_2}{2})h$ is the formula for the area of a trapezoid.
• Option D: $A=\frac{1}{2}bh$ is the correct formula for the area of a triangle where $b$ is the base and $h$ is the height.

Answer:

D. $A=\frac{1}{2}bh$