Question

An equilateral triangle has perimeter 30 cm. Find the area of the triangle

Answer 1

Answer:

Area = 50 cm²

Step-by-step explanation:

Let the sides be x

it has all the same side so

perimeter= sum of all sides

30=x+x+x

30=3x

30/3=x

x=10

one side = 10 cm

area of a triangle = 1/2 × b× h

= 1/2× 10×10

=5×10

= 50 cm² answer

Answer 2

Answer:

A=43.3cm² and

Step-by-step explanation:

Perimeter 30cm