Question

calculate the area and the height of an equilateral triangle whose perimeter is 12 cm​

Answer 1

Answer:

48√3 cm2

Step-by-step explanation:

Given: Height of the equilateral triangle = 12 cm.

Formula Used: Height of triangle = (√3/2) × side of an equilateral triangle. Area of an equilateral triangle = (√3/4) × side2

Calculation: Side of the triangle = (2/√3) × 12 = 8√3. ...

∴ The area of equilateral triangle is 48√3 cm2

Answer 2

Solution

Perimeter of triangle is 3a=12a=4cm

Area of triangle is 43a243424316=43