Irah Athirah's answer to Grace Goh's Primary 6 Maths Measurement Singapore question.
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(Ignore the rubbish on the right side!)
You have to find the length of the square, given the area of the square is 49cm^2.
Then, find the area of the triangle and circle.
Once you find both the area of the triangle and the circle, find the area not covered by the circle.
Since half of the area not covered by the circle is in the shaded region, you add the area of circle and half of the area not covered by the circle and subtract the area of the triangle. And that, you find the area of shaded area!
*Hope this works for you!
You have to find the length of the square, given the area of the square is 49cm^2.
Then, find the area of the triangle and circle.
Once you find both the area of the triangle and the circle, find the area not covered by the circle.
Since half of the area not covered by the circle is in the shaded region, you add the area of circle and half of the area not covered by the circle and subtract the area of the triangle. And that, you find the area of shaded area!
*Hope this works for you!
Date Posted:
5 years ago
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