Question

the radius of a circle is 2.8 cm what is the length of an Arc of measure 90 degree​

Answer 1

Answer:

The measure of an arc is 90° so by Theorem Angle subtended by an arc at the centre is double Angle subtended at any point of remaining circle.

So, at the centre angle will be 180°

.°. Chord is diameter then it will be 5.6cm

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Answer 2

Step-by-step explanation:

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