maths question Watch

awesome12300
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plz help !!!!!!!!!!!!!!!!!!!!!



The diagram shows a semi circle inside a rectangle of length 120m.
The semi circle touches the rectangle at A,B and C.
calculate the perimeter of the shaded region.Give your answer correct to 3 significant figures.
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leonamay1
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Hi,

Can you upload a picture of the question? Cannot help without seeing the shapes and shaded region.

Circumference of a circle is \pi d.

Hope this helps.
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awesome12300
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AlexS101
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The two outside edges are equal to the radius of the circle and the curved bit is a quarter of the circles circumference. So use the formula for circumference and divide by four to get the curved bit and add double the radius
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Raining in TOKYO
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(Original post by awesome12300)
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Find the circumference of the circle and divide by 4 to get the curved edge of the shaded area. Then the other two lengths are just the radius of the circle i believe.
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awesome12300
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Ok thanks

(Original post by awesome12300)
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