In the given figure O is the centre of circle- If - OAB -30- and - OCB -40- then measure of - AOC is -A- 220-B- 70-C- 140-D- 110-

The correct option is C 140o ...

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Byju's Answer

Standard IX

Mathematics

Diameter

In the given ...

Question

In the given figure O is the centre of circle. If ∠OAB = 30^o and ∠OCB = 40^o, then measure of ∠AOC is :

220^o

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70^o

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110^o

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140^o

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Solution

The correct option is D
140^o

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Similar questions

Q. In the given figure O is the centre of circle. If

∠ O A B = 30^{\circ}

and

∠ O C B = 40^{\circ}

, then measure of

∠ A O C

is :

In the given figure, $O$ is the center of a circle in which $∠ O A B = 20^{\circ}$ and $∠ O C B = 50^{\circ} .$ Then, $∠ A O C =$ ?

(a) $50^{\circ}$
(b) $70^{\circ}$
(c) $20^{\circ}$
(d) $60^{\circ}$

Q. In the given figure, O is the centre of the circle

∠

OAB = 30

^{o}

and

∠

OCB = 40

^{o}

. Then

∠

AOC is

(i) In figure (1), $O$ is the centre of the circle. If $∠ O A B = 40^{\circ}$ and $∠ O C B = 30^{\circ}$ . Find $∠ A O C$ .

(ii) In figure (2), $A, B$ and $C$ are three points on the circle with centre $O$ such that $∠ A O B = 90^{\circ}$ and $∠ A O C = 110^{\circ}$ . Find $∠ B A C$ .

Q. In the given figure, O is the centre of the circle,

∠ O A B = 30^{\circ}

and

∠ O C B = 55^{\circ}

. Find the measures of

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and

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In the given figure O is the centre of circle. If ∠OAB = 30o and ∠OCB = 40o, then measure of ∠AOC is :

The correct option is D 140o

In the given figure O is the centre of circle. If ∠OAB = 30^o and ∠OCB = 40^o, then measure of ∠AOC is :

The correct option is D
140^o