Question

A circle with centre "O' has a radius of 14 cm . AB is chord of that circle. Find th:
length of the chord AB, if m angle AOB = 60°.
a) 28 cm.
b) 7 cm.
c) 14 cm.
d) 21 cm.
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Answer 1

Answer:

(c )answer okkkkkkhhhhhhheeeeeyyyyy

Answer 2

Answer:

the answer is (c) 14 cm

Step-by-step explanation:

In ΔOAB,

∠O + ∠A + ∠B = 180°

⇒ 60° + ∠A +∠A = 180° [using eq. (i)]

⇒ ∠A = 60°

Thus ∠O = ∠A = ∠B = 60°

⇒ ΔOAB is an equilateral triangle .

⇒ AB = OA = OB = r Hence proved.

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