Question

if the perimeter of an equilateral triangle is 15 cm then calculate the height and area of that traingle​

Answer 1

Answer:

Perimeter of equilateral triangle=15 cm

3×side=15

side=5 cm

Height of equilateral triangle=√3/2×side

$\frac{ \sqrt{3} }{2} \times 5 \\ = \frac{5 \sqrt{3} }{2} cm$

Answer 2

Step-by-step explanation:

Solution is given in above pic

Height=√3/2a

=√3/2×5

=5√3/2

Mark it brainlist answer