Question

exercises 7.1

1. find the perimeter and area of each of the following figures.

a.
p=
a=
d=

Explanation:

Step1: Calculate the perimeter

The perimeter \(P\) of a triangle is the sum of its side lengths.

$$P = 18+14 + 30$$

$$P=62\space m$$

Step2: Calculate the area

The area \(A\) of a triangle is given by the formula \(A=\frac{1}{2}\times base\times height\). Here, the base \(b = 30\space m\) and the height \(h=10\space m\)

$$A=\frac{1}{2}\times30\times10$$

$$A = 150\space m^{2}$$

Answer:

\(P = 62\space m\), \(A=150\space m^{2}\)