An equilateral triangle has an area of 6.93 cm2. What is the side length of the triangle, to the nearest tenth of a centimetre?

1 Answer
Feb 19, 2018

Side length of the equilateral triangle is 4.0 cm.

Explanation:

In equilateral triangles, all three sides are of same length,

of s , area of triangle is is a_t =sqrt(3)/4*s^2 ; a_t=6.93

sq.cm :. 6.93=sqrt(3)/4*s^2 or s^2= (4*6.93)/sqrt(3) ~~16.0

:.s ~~4.0 cm.

Side length of the equilateral triangle is 4.0 cm. [Ans]