Given Chord length = 141.42 mm

Half Chord Lenth = 70.72 mm

Pythagoras formula:

P = √ H² – B²

P = √ 100² – 70.71²

P = 70.71 mm

Chord length to Arc length formula

इसे भी पढ़े.. पाइथागोरस का फार्मूला ?

Now, formula

Tanθ = P/B

Tanθ = 70.71/70.71

Tanθ = 1

θ = Tan¹ (1)

θ = 45° × 2

= 90 degree

इसे भी पढ़े.. Sin Cos Tan का प्रयोग कैसे करे ?

Now, formula

θ /360° × 2 π r

90° /360° × 2 × 3.142 × 100

157.14 mm

Circle Diameter is 200 mm.

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