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The three angles of a quadrilateral are ...

The three angles of a quadrilateral are `55^@`, `65^@` and `105^@`. What is the fourth angle?

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The correct Answer is:
`135 ^(@)`
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NCERT TELUGU-QUADRILATERALS-EXAMPLE
  1. The three angles of a quadrilateral are 55^@, 65^@ and 105^@. What is ...

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  2. In a quadrilateral two angles are 80^@ and 100^@ and the remaining two...

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  3. The angles of a quadrilateral are x^@, (x-10)^@, (x+30)^@ and 2x^@. Fi...

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  4. The four angles of a quadrilateral is in the ratio of 3:4:5: 6. Find t...

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  5. Find the perimeter of the parallelogram PQRS ………….

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  6. Let BEST be a parallelogram, then find the values of x, y and z.

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  7. In parallelogram RING if m angle R = 70^(@), find all the other angle...

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  8. HELP is a parallelogram. Given that OE = 4 cm, where O is the point of...

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  9. RENT is a rectangle. Its diagonals intersect at O. Find x, if OR = 2x ...

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  10. In trapezium ABCD, bar (AB) is parallel to bar (CD). If angle A = 50^(...

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  11. The measures of two adjacent angles of a parallelogram are in the rati...

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  12. RICE is a rhombus. Find OE and OR. Justify your findings.

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  13. The three angles of a quadrilateral are 55^@, 65^@ and 105^@. What is ...

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  14. In a quadrilateral, two angles are 80^(@) and 120^(@). The remaining t...

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  15. The angles of a quadrilateral are x^@, (x-10)^@, (x+30)^@ and 2x^@. Fi...

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  16. The four angles of a quadrilateral is in the ratio of 3:4:5: 6. Find t...

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  17. Find the perimeter of the parallelogram PQRS.

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  18. BEST is a parallelogram. Find the values x, y and z.

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  19. In parallelogram RING if m angle R = 70^(@), find all the other angle...

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  20. HELP is a parallelogram. Given that OE = 4 cm, where O is the point of...

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    |