Question

A side of an equilateral triangle ABC is 4 cm
Find the side of an equilateral triangle PQR
whose area is double the area of triangleABC
Solution :​

Answer 1

Answer:

Side of triangle = 4cm

So area = root3/4 *side sq.

= root 3/4 *4*4

= root3 *4

2* Area of ABC = PQR

2* root 3 * 4. = area of PQR

2root3 *4 = root 3/4 side sq.

2*4 *4 = (S) sq.

32= S sq

root 32 = S

4 root 2 = S

So side of PQR =4 root 2