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If the mesures of two angles of a triangle are `65^(@) 56' 55 "and" 64^(@) 3'5,` then calculate the cirular value of the third angle.

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Third angle = `180^(@) -(65^(@)65'55'+64^(@)3'5") =180^(@)=130^(@)=50^(@)`
`50^(@)xx(pi)/(180^(@))=(5pi)/(18)` Hence the required circular measure `=(5pi)/(18).`
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CALCUTTA BOOK HOUSE-CONCEPT OF MEASUREMENT OF ANGLES -EXERCISE - 1
  1. If the mesures of two angles of a triangle are 65^(@) 56' 55 "and" ...

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  2. The length of an are which subtends 22(1^(@))/(2) "at the centre of a ...

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  3. State true or false: Two angles are in the ratio 5:3 and their differ...

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  4. The angles of a triangle are in the ratio 2:5:3. Find the circular mea...

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  5. The circumference of a circle is 176 cm, find its radius.

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  6. The angles of a quadrilateral are x^(@),60^(@),60^(@) "and" (5pi^(c))/...

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  7. The sum of two angles is 60 grades and their difference is 16^(@). Fin...

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  8. One angle of a triangle is 60^(@) and the second is (pi)/(4) radian. E...

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  9. 13214"=

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  10. (5pi^(c))/(9)=

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  11. 120^(g)=

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  12. The length of an are which subtends 22(1^(@))/(2) "at the centre of a ...

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  13. Two angles are in the ratio 5:3 and their difference is 100^(g). The g...

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  14. The mesure of an angle subtended at the centre of circle by an are to ...

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  15. The circular measure of angle theta=""

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  16. The measure of the angle subtended at the centre of a circle by a quar...

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  17. The angles of a triangle are in the ratio 2:5:3. Find the circular mea...

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  18. The circumference of a circle is 176 cm, find its radius.

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  19. The angles of a quadrilateral are x^(@),60^(@),60^(@) "and" (5pi^(c))/...

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  20. Find the circular measure of an interior angle of a regular n-gon.

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  21. Express in degrees and minutes and also in greades all the angles of a...

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