Question

Aa wire of length 10 cm is bent so as to form an arc of a circle of radius 4 cm what is the angle subtended at the centre in degree ?
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Answer 1

Answer:

143.18

Step-by-step explanation:

the angle at the centre in radians = length of Arc divided by the radius

angle = 10÷4 = 2.5rd

1rd = 180°÷π

2.5rd = (2.5×180)÷π