Question

calculate the area and perimeter of the given shape. round to the nearest tenth.
area= units²
perimeter= units

Explanation:

Step1: Calculate the area

The formula for the area of a triangle is $A=\frac{1}{2}\times base\times height$. Here, the base is $9$ and the height is $7$.
$A = \frac{1}{2}\times9\times7=\frac{63}{2}=31.5$

Step2: Calculate the perimeter

The perimeter of a triangle is the sum of all its sides. The sides are $7$, $9$, and $11.4$.
$P=7 + 9+11.4=27.4$

Answer:

Area = $31.5$ units²
Perimeter = $27.4$ units