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P6 Mathematics

Question post on Mon, 29/05/2017 10:17pm

Ans given as 21.07cm2.

is it an error?

Ender · Answer 1 · Post on Mon, 29/05/2017 10:36pm

Since you already drawn the small rectangle in the diagram, we will use that.

Area of rectangle = 14 X 7 = 98 cm²

Area of the 2 quadrant in the rectangle = Pi X 7 X7 /2 = 76.93 cm²

Area of shaded portion = 98 – 76.93 = 21.07 cm² ##

Ender · Answer 2 · Post on Mon, 29/05/2017 10:36pm

Since you already drawn the small rectangle in the diagram, we will use that.

Area of rectangle = 14 X 7 = 98 cm²

Area of the 2 quadrant in the rectangle = Pi X 7 X7 /2 = 76.93 cm²

Area of shaded portion = 98 – 76.93 = 21.07 cm² ##

BigDevil · Answer 3 · Post on Tue, 30/05/2017 12:40am

BigDevil Post on Tue, 30/05/2017 12:40am

Good to see you back, Ender!

Ender · Answer 4 · Post on Tue, 30/05/2017 10:32am

Ender Post on Tue, 30/05/2017 10:32am

Thanks.. School holiday got more free time.. 🙂