PQ and QR are 2 sides of a regular polygon. PR is a diagonal of the polygon. Work out the size of angle PQR?

2020-05-01 9:00 pm

回答 (2)

2020-05-01 9:14 pm
PQ and QR are adjacent sides, and PR is a diagonal.
Hence, the regular polygon has 4 sides.
In other word, it is a square.

Each interior angle of a square is 90°.
Hence, ∠PQR = 90°
2020-05-02 12:15 am
PQ and QR are °2 sides of a regular polygon. 
PR is a diagonal of the polygon. 
The polygon is a square.
∠PQR = 90°


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