Compound Shapes Compound shapes Can you describe what

Compound Shapes Compound shapes Can you describe what a compound shape is?

Recap: How do you work out the area of. . . Area of rectangle = Area of triangle = Base x height (base x perpendicular height) ÷ 2

Compound Shapes A compound shape is one that is made up of other shapes. To find the area of a compound shape, you need to split it up into shapes you know: • Label each section. 7 cm • Write down all dimensions. • Find the areas. 6 cm A: 13 cm Remember, there is often more than one way to split up a shape! B: 4 cm A + B = _____

Compound Shapes 4 cm • Label each section. • Write down all dimensions. • Find the areas. 4 cm 7 cm A: 6 cm B: A + B = _____

Compound Shapes • Label each section. • Write down all dimensions. • Find the areas. 8 cm A: 13 cm B: 15 cm A + B = _____

Compound Shapes • Label each section. • Write down all dimensions. • Find the areas. 4 cm A: 22 cm 15 cm 18 cm B: C: 25 cm A + B + C = _____

Compound Shapes 15 cm 14 cm 20 cm • Label each section. • Write down all dimensions. • Find the areas. A: 8 cm 9 cm B: C: 18 cm A + B + C = _____

Areas with circles cut out Calculate the shaded area. d = 6 cm 18 cm 9. 5 cm

Areas with circles cut out Calculate the shaded area. 45 cm 10 cm d = 5 cm

Areas with circles cut out Calculate the shaded area. 6 cm 11 cm

Areas with circles cut out The circle shown fits exactly into the square. Find the shaded area. 18 cm

Areas of parts of a circle Find the area of the part of the circle shown shaded in each of the diagrams below. 13 cm 9 cm 7 cm 10 cm 3 cm 8 cm 7. 5 cm

Areas with circles cut out Calculate the area (shaded) between the two semi circles. 11 cm 23 cm

Areas with circles cut out From a rectangular piece of cardboard, quarter circles of radius 2 cm are cut from each corner. Find the shaded area. 11 cm 17 cm

Areas with circles cut out Calculate the shaded area. 15 cm

Find the area of the part of the circle shown shaded in each of the diagrams below. 4 cm 3 cm 7. 5 cm 12 cm 13 cm