in the given figure if O is the centre of a circle and find its measure of angle ACB
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Answered by
20
Answer:
40°
Step-by-step explanation:
L AOB=80°. (measure of central angle)
m(arc AB)=80°. (by property - measure of corresponding arc is equal to measure of central angle )
L ACB=1/2m(arc AB )
=1/2 *80
. =40°
L ACB = 40°
Answered by
26
The angle ACB = 40°
Step-by-step explanation:
Given data
∠ AOB = 80°
We know that angle made on center = 2 × angle made on circumference
⇒ ∠ AOB = 2 × ∠ ACB
⇒ 80 = 2 × ∠ ACB
⇒ ∠ ACB = 40°
Thus the angle ACB = 40°
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