Question

19. The area of an equilateral triangle with side 213 cm is​

Answer 1

Step-by-step explanation:

Given, side of an equilateral triangle is 2√3 cm. Hence, the area of an equilateral triangle is 5.196 cm2.

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Answer 2

Answer:

Given : side = 2√3cm

Find : area of an equilateral triangle?

Step-by-step explanation:

Area of an equilateral triangle = √3/4(side)²

now, put the value of side in above formula,

     = √3/4(2√3)²

     = (√3/4)×4×3

     = 3√3

     = 3×1.732 = 5.196 cm²

Hence, The area of an equilateral triangle is 5.196 cm².