Converse of Theorem 5
In the given figure, ˆAB=ˆCD, ∠AOB=55∘ and ∠BOC=70∘.
Find the value of ∠COD
Q. In the given figure arc AB and arc CD of a circle having centre at O are equal to 5cm.If ∠AOB=40∘, then the ∠COD is equal to__.
Q. In the given figure arc AB and arc CD of a circle having centre at O are equal to 5cm.If ∠AOB=30∘, then the ∠COD is equal to__.
Q. If PQ = RS and ∠ORS=48∘ in the given figure, what are the values of ∠OPQ and ∠SOR?
- 48∘, 84∘
- 84∘, 48∘
- 78∘, 84∘
- 38∘, 68∘
Q. What is the angle subtended by the major arc of a circle?
- >180 degrees
- <180 degrees
- 180 degrees
- >360 degrees
Q. Unwinding of silk threads from cocoon is called reeling.
Q. Arrange the given processes involved in the processing of wool in the correct order.
Q. Name the natural fibre used in the production of following items.
Q. Water droplets on a cold water bottle are the condensed form of water vapour in air.