Math, asked by nirmaltiwari503, 4 months ago

In a circle of radius 6.3 cm, an arc AB subtends an angle of 90° at the centre o of the
circle. Find the perimeter of the sector AOB

Answers

Answered by paradox5

2

Answer:

the perimeter is 22.5 cm

adding two radius of arc and the length of the arc

s = r × angle at centre in radian

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