Question

ΔRST and ΔXYZ are equilateral triangles. The ratio of the perimeter of ΔRST to the perimeter of ΔXYZ is 1 to 3. The area of ΔRST is 10.825 square inches. What is the area of ΔXYZ? (round to nearest tenth

Answer 1

97.425

Explanation:

C▲RST/C▲XYZ=1/3

S▲RST/S▲XYZ=1/9

The area of ▲RST is 10.825

SO the are of ▲XYZ is 10.825*9=97.425