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One angle of a triangle is thrice the sm...

One angle of a triangle is thrice the smallest angle and the other angle is five times the smallest angle. Find the three angles.

A

`20^(@),70^(@),90^(@)`.

B

`40^(@),60^(@),110^(@)`.

C

`20^(@),60^(@),100^(@)`.

D

`50^(@),60^(@),100^(@)`.

Text Solution

Verified by Experts

The correct Answer is:
C
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ICSE-THE TRIANGLE AND ITS PROPERTIES-TRY THIS
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  2. One exterior angle of a triangle is 70^(@). The two opposite interior ...

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  3. In the given figure, find x and y.

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  4. Find the third angle of a triangle, two of whose angles are 65^(@) and...

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  7. Find angleA+angleB+angleC+angleD

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  8. Find the values of x,y, and z in the following figure.

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  9. Find the length of AB in each of the following

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  10. Find the value of x in each of the following triangles.

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  11. Find the values of x and y.

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  12. If one of the base angles of an isosceles triangle measures 30^(@), fi...

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  13. Can the lengths 5 cm, 9 cm, andd 13 cm be the dimensions of a triangle...

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  15. A point O lies inside a DeltaABC. Show that OA+OB+OC gt (1)/(2)(AB+BC+...

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  16. Find the value of x in each of the following figures.

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  18. Find the perimeter of a rhombus whose diagonals are 30 cm and 34 cm.

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