Question

1. Side of eqilateral triangle PQR is 8 cm then find the area of triangle whose side is
half of side of triangle PQR ​

Answer 1

Answer:

Step-by-step explanation:

Answer:

2.592 cm²

Step-by-step explanation:

Given that it is an equilateral triangle

⇒ Each angle is 60º

Find the area of the 3 sectors:

Area = 3 x 60/360 x πr²

Area = 3 x 60/360 x π(4)²

Area = 25.12 cm²

Find the area the triangle:

Area = √3/4(sides)²

Area = √3/4 (8)

Area = 27.712 cm²

Find the area of the shaded region:

Area = 27.712 - 25.12 = 2.592 cm²

Answer 2

ANSWER IS :--------6.928cm^2