pls help me out
1.using herons formula , show tht area of any equilateral triangle is root3/4 a2(square)
2.if area of equilateral triangle is 36root6 cm square find its perimeter
Answers
Answered by
0
let the sides of an equilateral tiangle be x
so x+x+x=3x peri.
and 3x/2, semi perimeter
By Heron's formula √s(s-a)(s-b)(s-c)
√3x/2×x/2×x/2×x/2
==x/2×x/2√3
==√3 x²/4 hence proved,
so x+x+x=3x peri.
and 3x/2, semi perimeter
By Heron's formula √s(s-a)(s-b)(s-c)
√3x/2×x/2×x/2×x/2
==x/2×x/2√3
==√3 x²/4 hence proved,
Similar questions