Michael's answer to Vernice Lee's Primary 6 Maths Measurement Singapore question.
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The first hint is there are 2 squares.
The tilted squares has a 2 lines creating a cross in the square touching all 4 vertices. This means that the square is made up of 4 isosceles triangle with 45 degrees on both side.
Now you can find out the angle 180 - 45 -32 = 103
Here note that y is form from 2 lines crossing, hence vertically opposite angles.
360 - 103 - 103 = 154
154/2 = 77
The tilted squares has a 2 lines creating a cross in the square touching all 4 vertices. This means that the square is made up of 4 isosceles triangle with 45 degrees on both side.
Now you can find out the angle 180 - 45 -32 = 103
Here note that y is form from 2 lines crossing, hence vertically opposite angles.
360 - 103 - 103 = 154
154/2 = 77
Date Posted:
1 year ago
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