What is the perimeter of the shape seen in the figure?
The angles in the figure tell you that the triangle must be equilateral (All of corners of the triangle is 60 degree (150 - 90 = 60)). That means all three sides of the triangle are 10 cm. This also means the base of the figure is 10 cm + 6 cm = 16 cm. the left side is 14 cm, adding up the values given on the right side. Thus, the total perimeter is 10 cm + 10 cm + 14 cm + 16 cm + 6 cm + 6 cm + 8 cm, which is 70 cm total.