Question

what is the area of equilateral triangle with sides 2cm.​

Answer 1

Answer:

According to the formula we can find ,

Area of equilateral triangle = (√3/4) a²

Here each side of equilateral triangle(a) = 2 cm

Area of equilateral triangle = (√3/4) a²

= (√3/4) (2)²

= (√3/4) x (2) x (2)

= [√3 /( 2 × 2 ) ] × 2 × 2

= (√3)

= √3 cm²

= 1.73 cm²

Therefore area of an equilateral triangle whose side is 2 cm is √3 cm² or 1.73 cm²

:)