Ivan Lim's answer to Lim Kai Xin's Primary 5 Maths question.

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Ivan Lim
Ivan Lim's answer
25 answers (Tutor Details)
1st
When a parallelogram is folded as shown, notice a kite is formed. Hence, the opposite angles are the same as shown in red and blue markings.

We will need to find the angle y, then the angle x.

With the property of a parallelogram, we have
32 + y + y + 104 = 180
y = 22

104 + x + y = 180
so, x = 180 - 104 - 22 = 54 degrees
Lim Kai Xin
Lim Kai Xin
7 years ago
Thank you