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primary 6 | Maths
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Hence,length of square is 6cm
B) Calculate area of triangle Q+ R using area of triangle since you know the height & length of the triangle.
Area of triangle S > minus area of triange P & (Q+R) from the total area .
See 1 Answer
To calculate the full area of the square. It is 10 ÷ 5/18 = 36 cm square.
Based on that square length and breadth is the same. Square root of 36 is 6cm
The side of the square is 6 cm.
Qn 2.
If you look at the triangle formed by P and S. You get a triangle that has the same length and base of 6 cm.
So the area of P + S is 36 /2 = 18 cm square.
Area of P is 36 × 1/9 = 4 cm square.
Area of S is 18 - 4 = 14 cm square.
Fraction of S in the square = 14 /36 = 7 /18