Area of Shaded Grids

The diagram shows two small circles inside a large circle. The large circle has a radius of 8 cm.

Each of the two small circles has a diameter of 4 cm.

Work out the area of the region shown shaded in the diagram. Give your answer correct to one decimal place.

Work out the shaded area.

Work out the shaded area.

Work out the shaded area.

Work out the shaded area.

The rectangle has length 20cm and width 11cm.

The circle has diameter 8cm.

Work out the shaded area.

Give your answer correct to 2 decimal places.

John is painting the front of his house. 

Work out  the area ,  he has to paint.         

Shown is a circular photo surrounded by a frame.

The photo has radius 12cm.

The frame has width 4cm.

Work out area of the frame.

This area is shaded in the diagram.

A logo is designed that has four pink circles within a white square.The square has side length 16cm.

Find the area of the logo that is white.

Work out the shaded area.