Find a and B.
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Answered by
1
Answer:
a = 80
b=50
Am i correct
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Answered by
0
Answer:
a = 80°, b = 50°
Step-by-step explanation:
In the given figure,
a = 40 x 2 = 80° (The angle subtended by an arc at the centre is twice the angle subtended at the circumference)
Consider the ∆ containing a and b,
I'm naming the triangle as ∆OAB,
OA = OB (Radii of the same circle)
Therefore,
∆OAB is isoceles,
b = 180-a/2
=180-80/2 = 100/2 = 50°
Hope it helps...❤️
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