Question

each side of an equilateral triangle is10 cm.Find the side of the equilateral triangle with it's perimeter equal to that of rectangle​

Answer 1

Step-by-step explanation:

ANSWER

Side of an equilateral triangle =10cm

(i) Area of an equilateral  triangle =43(side)2=43×10×10=43.3

Area of a triangle is 43.3cm2

(ii) Height of the equilateral triangle =23(side)=23×10=8.66

Height of the triangle is 8.66cm