The circumference of a circle is 60 cm. An arc subtends 90° at the centre. Find its length.

The circumference of a circle is 60 cm. An arc subtends 90° at the ce

1.	The circumference of a circle is 60 cm. An arc subtends 90° at the centre. Find its length.
A.	10 cm
B.	15 cm
C.	20 cm
D.	25 cm
Answer» C. 20 cm

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The circumference of a circle is 60 cm. An arc subtends 90° at the centre. Find its length.

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