Question

6. The perimeter of an equilateral triangle
45 cm. Find its area.​

Answer 1

Answer:

√3× 56.25

= 97.42 (Approx.)

Step-by-step explanation:

Perimeter of equilateral triangle = 3 × each side

Perimeter of equilateral triangle = 45 cm

Now, let it's each side be x cm

So, 3 × x = 45

=> X = 45/3 = 15

Area = √3/4 × a^2

= √3/4 × 15^2

= √3/4 × 225

= √3× 56.25

= 97.42 (Approx.)