PSLE Math 2022 Paper 2 Question 11
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(Angles and Area Algebra Question)
PSLE Math 2022 Paper 2 Question 11
a) Ans: (2x + 4)cm
GH = 12 - 8 = 4
CG = GD = FE = x + 4
AE = x + x + 4
= 2x + 4
b) Ans: 572
Area of A -> 12 x 4 = 168
Area of B -> 1/2 x 14 x 14 = 98
Area of C -> 1/2 x (14 + 4) x (14 + 4) = 162
Area of D -> 8 x (14 + 4) = 144
Total area -> 168 + 98 + 162 + 144 = 572