Find the area enclosed by each of the following figures :

We know that, area of rectangle = l × b

And area of triangle = × b × h

Area of rectangle = 15 × 3 = 45 cm²

Now, base of triangle = 15 – 10 = 5 cm

Given, height of triangle = 4 cm

Area of triangle = × 5 × 4 = 10 cm²

Total area = Area of rectangle + Area of triangle =45 + 10 = 55 cm²

∴ Total area = 55 cm²