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sergejj [24]
2 years ago
15

I really need help!

Mathematics
2 answers:
iVinArrow [24]2 years ago
8 0

Answer:

  c. m∠P'Q'R' = m∠PQR

Step-by-step explanation:

Rotation is a rigid transformation. It does not change lengths or angles.

alexira [117]2 years ago
8 0

Answer:

Option c is right

Step-by-step explanation:

Rotation means turning around a centre.  Here O, the origin is the centre. And angle PQR is rotated 90 degrees counter clockwise about the origin.

Rotation is the change of direction, but normally the sizes and angles will not change.

Here by rotation angle PQR will not change (neither increase or decrease)

Hence Angle PQR = angle P'Q'R' Option c is right

Option a is not right since the new angle need not be 90 degrees unless we know PQR =90

Similarly for b also it is wrong

d is wrong since rotation will not make angle 2 times.

Hence option c is right answer

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