Question

11. A square and an equilateral triangle have a
side in common. If side of triangle is4/3
cm
long, find the perimeter of figure formed
(Fig. 2.8).​

Answer 1

Answer: 6 2/3 cm
Solution: Equilateral Triangle and square have all sides equal so the common side will not be counted in perimeter.
The perimeter includes 2 sides of triangle and 3 sides of square. The side of square= the side of triangle= 4/3
The total perimeter= 4/3 * 5(total number of sides) = 6 2/3 cm