# Perimeter and Area of Composite Figures > help?

An archery target has a diameter of 80 cm. It contains a circle in the centre with a radius of 8cm and four additional concentric rings each 8 cm wide.
a) Find the area of the outer ring, to the nearest square centimetre.
b) What percent of the total area is the outer ring?
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An archery target has a diameter of 80 cm. It contains a circle in the centre with a radius of 8cm and four additional concentric rings each 8 cm wide.

a) Find the area of the outer ring, to the nearest square centimetre.

b) What percent of the total area is the outer ring?

This is a question from the perimeter and area of composite figures unit that I'm working on independently at the moment. So yeah if you have the answer to this question, I would really appreciate it. Please help me, asap. Oh & this is grade 9 academic math, hope that helps?

a) Find the area of the outer ring, to the nearest square centimetre.

b) What percent of the total area is the outer ring?

This is a question from the perimeter and area of composite figures unit that I'm working on independently at the moment. So yeah if you have the answer to this question, I would really appreciate it. Please help me, asap. Oh & this is grade 9 academic math, hope that helps?

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