Question

pls explain step by step​

Answer 1

Step-by-step explanation:

Perimeter=60

Perimeter =3a

a=20

$area \: of \: equilateral \: triangle = \frac{ \sqrt{3} {a}^{2} }{4}$

$area = \frac{1.732 \times {20}^{2} }{4} = 173.2$

A

$area = \frac{1}{2} \times base \times height$

$173.2 = \frac{1}{2} \times 20 \times height$

Height=17.32

Answer 2

Answer:

This is right answer, Hope this helps you

Thanks

radhe radhe