Question

2. An equilateral triangle is drawn on outside bounding of a square of side 10 cm. What is the perimeter of the new figure?​

Answer 1

base of the triangle is on the square of side 10cm

so base of the triangle = 10cm

since its an equilateral triangle, all sides are = 10cm

perimeter of equilateral triangle = 3× side

= 3 × 10

= 30 cms