Question

the perimeter of an equilateral triangle is 60 M the area is​

Answer 1

Answer:

perimeter of triangle is sum of its all sides

Step-by-step explanation:

perimeter =60

let side of triangle is x

then 3x =60

x=20

area of triangle (equilateral )=

$\sqrt{3} \div 4 \: side \times side$

$\sqrt{3} \times 5 \times 20$

$\sqrt{3} \times 100$

so answer is

$100 \sqrt{3}$

Answer 2

Answer:

100√3

Step-by-step explanation:

perimeter = side 1 + side 2 + side 3= 60

x + x + x = 60

3x = 60

x = 60/3

x =20

altitude = height = (1/2) × √3 × x

                           = (1/2) × √3 × 20

                           = √3 × 10

                           = 10√3

Area = 1/2×base×height

        = 1/2×20×10√3

        = 10×10√3

        = 100√3