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In Delta ABC, if AB=AC and angleB=50^(@)...

In `Delta ABC,` if AB=AC and `angleB=50^(@), " then " angleC ` is equal to

A

`40^(@)`

B

`50^(@)`

C

`80^(@)`

D

`130^(@)`

Text Solution

Verified by Experts

The correct Answer is:
B
Given `DeltaABC ` such that AB=AC and `angleB=50^(@)`
`In Delta ABC " "AB=AC`

`rArr " " angle C=angleB` [angle opposite to equal sides sides are equal ]
`rArr " "angle C=50^(@) [because angleB=50^(@) (given)]`
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NCERT EXEMPLAR-TRIANGLES-Triangles
  1. Which of the following is not a criterion for congruence of triangle ?

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  2. If AB=QR, BC=PR and CA=PQ then

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  3. In Delta ABC, if AB=AC and angleB=50^(@), " then " angleC is equal to

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  4. In Delta ABC,if BC=AB and angleB=80^(@),then angleA is equal to

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  5. In Delta PQR, If angleR=angleP, QR=4 cm and PR = 5 cm. Then, the lengt...

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  6. If D is a Point on the side BC of a Delta ABC such that AD bisects ang...

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  7. It is given that Delta ABC cong Delta FDE and AB= 5 cm , angle B=40^(...

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  8. If two sides of a tringle are of length 5 cm and 1.5 cm, then the len...

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  9. In Delta PQR, If angle R gt angle Q, then

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  10. In Delta ABC and Delta PQR , If AB=AC, angleC=angleP " and " angleB=a...

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  11. In Delta ABC and DeltaDEF , AB=FD and angleA=angleD. The two triangle...

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  12. In Delta ABC and Delta PQR,angleA=angleQ and angleB=angleR. Which side...

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  13. In Delta ABC and Delta PQR,angleA=angleQ and angleB=angleR. Which side...

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  14. If two sides and an angle of one triangle are equal to two sides and a...

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  15. If two sides and an angle of one triangle are equal to two sides and a...

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  16. Is it possible to construct a triangle with lengths of its sides as 4 ...

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  17. It is given that Delta ABC cong Delta RPQ .Is it true to say that BC =...

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  18. It DeltaPQR cong DeltaED,then is it true to say the PR = EF ? Given re...

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  19. In Delta PQR,angleP=70^(@) " and " angleR=30^(@) .Which side of this t...

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  20. AD is a median of the Delta ABC.Is it trure AB+BC+CA gt 2 AD ? Give re...

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