Class 10-Circles - Self Assessment -9 ( EM)

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The angle on the alternate arc is half the central angle of the arc

The angle on the alternate arc is half the central angle of the arc -( Watch this Video carefully and answer the following questions)

Question 1) Find the following angles. *

5 points

30º

20º

50º

∠APB

∠OPB

∠OPA

Question 2(Continuation of Question 1) Find the following angles. *

6 points

140º

30º

120º

∠OAP

∠BOP

∠AOP

Question 3) Find the following angles. *

4 points

70º

140º

What is the cente angle of the arc AQB?((ചാപം AQB യ‍ുടെ കേന്ദ്രകോണ്‍ എത്ര?))

∠APB

Question 4) Find the following angles.(Hint : Join OP) *

3 points

60º

25º

35º

∠APO

∠BPO

∠APB

Question 5) Find the following angles.(Hint : Join OP) *

6 points

120º

140º

20º

∠OBP

∠AOP

∠BOP

Question 6) Find the following angles. (Hint : Join OP) *

8 points

140º

50º

20º

∠AOB

∠OPB

∠OAP

∠OPA

Question 7) Find the following angles.(Hint : Join OP) *

8 points

40º

65º

∠APB

∠OAP

∠OPB

∠OPA

Question 8) Find the following angles. *

4 points

20º

110º

55º

∠APB

∠OBP

What is the cente angle of the arc AQB?

Question 9) Find the following angles. *

6 points

120º

60º

∠APB

∠AOB

What is the cente angle of the arc AQB?

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