Question

13. The perimeter of an equilateral triangle is 24 cm.
Find its area.
please explain.... ​

Answer 1

Answer:

given that perimeter of equilateral triangle is 24 cm

then;

3a=24

a=8 cm

now;

area of equilateral triangle=√3/4 A2

√3/4×64

6.94 cm square

Answer 2

Answer:

Now, perimeter of an equilateral triangle is 3x

Where, x is the side length.

So, 3x=24cm

X=8cm

Hence, each side length is 8cm.

Here comes it's area

Equilateral Triangle area=

3^1/2)×(side^2)/4.

= (3^1/2)×(64)/4 cm^2.

=16.(3)^1/2 cm^2.