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P6 Mathematics

Question post on Tue, 28/06/2022 9:12pm

Thank you.

sushi88 · Answer 1 · Post on Tue, 28/06/2022 11:05pm

From my diagram, you can see that the folded figure is a square because all the sides are equal.

Hence the two diagonals are 20 cm which means the radius of the quadrant is 20cm.

Area of quadrant = (πr² ) / 4 = (3.14 x 20 x 20) / 4 = 314

Area of the square = (1/2) b x h x 4 = 1/2 x 10 x 10 x 4 = 200 (made up of 4 right angled triangles)

Hence area of shaded part = 314-200 = 114cm²

PS: Please click “Accept Answer” if the answer is correct.

sushi88 · Answer 2 · Post on Tue, 28/06/2022 11:05pm

From my diagram, you can see that the folded figure is a square because all the sides are equal.

Hence the two diagonals are 20 cm which means the radius of the quadrant is 20cm.

Area of quadrant = (πr² ) / 4 = (3.14 x 20 x 20) / 4 = 314

Area of the square = (1/2) b x h x 4 = 1/2 x 10 x 10 x 4 = 200 (made up of 4 right angled triangles)

Hence area of shaded part = 314-200 = 114cm²

PS: Please click “Accept Answer” if the answer is correct.

sushi88 · Answer 3 · Post on Fri, 01/07/2022 9:49am

sushi88 Post on Fri, 01/07/2022 9:49am

Hi Prettyhomework,

If the answer is incorrect, please provide the answer key.

ChiefKiasu · Answer 4 · Post on Fri, 01/07/2022 12:00pm

ChiefKiasu Post on Fri, 01/07/2022 12:00pm

I think your answer is right.