In isosceles △DEF as shown in the diagram, DE = DF = 3 cm and DG = 2 cm.Find the perimeter of △DEF, correct to 3 significant figures.

The figure consists of an isosceles triangle and semicircle. Find the perimeter of the figure. Take π as 3.14.

If ΔABE∼ΔCDEΔ𝐴𝐵𝐸∼Δ𝐶𝐷𝐸, find the perimeter of ΔCDEΔ𝐶𝐷𝐸.

The diagram shows a shape made from triangle 𝐴𝐵𝐶 and a semicircle with diameter 𝐵𝐶.Triangle 𝐴𝐵𝐶 is right-angled at 𝐵.𝐴𝐵=7.6 cm and 𝐴𝐶=9.5 cm.Calculate the area of the shape.Give your answer correct to 3 significant figures.

In the diagram what is the perimeter of ∆ BOD?(a) 6 (b) 6.83(c) 13.66 (d) 16

Calculate the length of the hypotenuse in the diagram below. Give your answer to 3 significant figures.