Question

grade 6: mrl>chapter 7>chapter test> question #3

1. find the height of the triangle.

area $= 54\\ \text{cm}^2$
9 cm
$\square$ cm
grade 6: mrl>chapter 7>chapter test> question #5

Explanation:

Step1: Recall triangle area formula

The area of a triangle is $A = \frac{1}{2} \times b \times h$, where $A$ is area, $b$ is base, $h$ is height.

Step2: Substitute known values

Substitute $A=54$, $b=9$:
$54 = \frac{1}{2} \times 9 \times h$

Step3: Isolate $h$ (multiply both sides by 2)

$54 \times 2 = 9 \times h$
$108 = 9h$

Step4: Solve for $h$ (divide by 9)

$h = \frac{108}{9}$

Answer:

12 cm