Question

can u please answer the questions given in the picture below

Answer 1

Clear Explaination

Q3

Equilateral triangle PQR, each of three angles has 60°.

So, angle P, angle R, angle Q all have 60° themselves.

Bisector makes an angle half of its degree.

So, after bisecting of angle Q and R,

Angle Q = 30°

AngleR = 30°

Left angle A = 180° - 30° + 30°

120°

Therefore, angle QAR = 120°

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Q4

Thetotal sum of the interior angles of a triangles is 180°.

Third angle= 180° - 45° + 89°

46°

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