the area of equilateral triangle is 81 root 3 cm square find the perimeter
Answers
Answered by
1
54 is the perimeter of that equilateral triangle
Answered by
10
Area of equilateral triangle = √3/4a^2
According to question,
√3/4a^2 = 81 √3
√3a^2 = 81√3 × 4
a^2 = 324
a = 18
Therefore, Perimeter = 3a = 3 × 18 = 54cm
According to question,
√3/4a^2 = 81 √3
√3a^2 = 81√3 × 4
a^2 = 324
a = 18
Therefore, Perimeter = 3a = 3 × 18 = 54cm
Keshav5318:
Please mark brainliest
Similar questions