In the given fig.,∠AOD is a/an _____angle.∠COA is a/an ____

Question

In the given fig.,

∠ A O D

is a/an _____angle.

∠ C O A

is a/an _____angle.

∠ A O E

ia a/an _____angle.

∠ E O C

ia a/an _____angle.
[4 MARKS]

Answer:
:
Each blank: 1 Mark

∠ A O D

= 40+20+30 = 90

^{\circ}

= A right angle

∠ C O A

= 20+30 = 50

^{\circ}

= An acute angle

∠ A O E

= 40+40+20+30 = 130

^{\circ}

= An obtuse angle

∠ E O C

= 40+40 = 80

^{\circ}

= An acute angle

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