Question

17. The perimeter of an equilateral triangle is 240 m. Find its area.
a. 100√3 m2
b. 1400√3 m
c. 1200√3 m²
d. 1600√3 m2​

Answer 1

Answer:

1600√3 m²

Step-by-step explanation:

perimeter of equilateral triangle=  3×side

= 240 = 3×side

= side= 240/3= 80 m

area of equilateral triangle= √3/4 × side²

= √3/4 ×80×80

= √3/4 × 6400

= √3 × 1600 = 1600√3 m²

so area = 1600√3 m²