what is the area of a right triangle 9 centimeters high with a base of 9 centimeters?\na 81 cm\nb 18 square…
what is the area of a right triangle 9 centimeters high with a base of 9 centimeters?\na 81 cm\nb 18 square cm\nc 40.5 square cm\nd 40.5 cm
Answer
Explanation:
Step1: Recall area formula
The area formula for a triangle is $A=\frac{1}{2}bh$, where $b$ is the base and $h$ is the height.
Step2: Substitute values
Given $b = 9$ cm and $h=9$ cm, substitute into the formula: $A=\frac{1}{2}\times9\times9$.
Step3: Calculate result
$\frac{1}{2}\times9\times9=\frac{81}{2}=40.5$ square - cm.
Answer:
C. 40.5 square cm