If angles of a quadrilateral are in the ratio 3 : 5 : 9 : 13. Find the largest angle?

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RRB Non Technical Exam (Secunderabad) 2016 click here to view all questions

If angles of a quadrilateral are in the ratio 3 : 5 : 9 : 13. Find the largest angle?

A155

B170

C156

D150

rihad ? Jan 10 '2020 at 14:17

Correct answer is: 156

Explanation:

Let the angles be 3x, 5x, 9x, 13x

3x + 5x + 9x + 12x = 360.

 30x = 360

x = 120

 Angles are 36, 60, 108, 156.

largest angle is 156

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The perimeter of a triangle is 28 cm. If the length is 5/2 times its breadth, find the length and breadth of the triangle.

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RRB Non Technical Exam (Secunderabad) 2016 click here to view all questions

The perimeter of a Rectangle is 28 cm. If the length is 5/2 times its breadth, find the length and breadth of the rectangle.

A9 & 5

B10 & 4

C6 & 7

D11 & 3

rahul ? Jan 14 '2020 at 10:50

Correct Answer is: 10 & 4

Explanation:

Sides 5x and 2x

Perimeter of rectangle = 2 ( Length + Breadth)

Perimeter = 2(5x+2x) =28

x=2

Sides =10 and 4

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Two angles are complementary, if the sum of their measures is-

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RRB ASSISTANT LOCO PILOT (Patna) 2013 click here to view all questions

Two angles are complementary, if the sum of their measures is-

A90°

B100°

C180°

D360°

raju ? Jan 8 '2020 at 7:49

Correct answer is :90°

Explanatopn:

(i) If two angles are complementary, then the sum of their measures is 9090.

(ii) If two angles are supplementary, then the sum of their measures is 180180.

(iii) Two angles forming a linear pair are supplemetary.

(iv) If two adjacent angles are supplementary, they form a linear pair.

(v) If two lines intersect at a point, then the vertically opposite angles are always equalequal.

(vi) If two lines intersect at a point, and if one pair of vertically opposite angles are acute angles, then the other pair of vertically opposite angles are obtuseobtuse.

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