Angles (With their Types) MATHS - Angles (With their Types)

Find the number of degrees in an angle that is 0.2 times of a straight line angle.

Explain what do you understand by supplementary angles?

Explain what do you understand by complementary angles?

Find the angle that is equal to its supplement?

Find the supplement of 0.7 times of 150°

Find the complement of 0.4 times of 130°.

In the given figure; AB, CD and EF are straight lines. Name the pair of angles forming the vertically opposite angles.

Two supplementary angles are (5x – 82°) and (4x + 73°). Find the value of x.

Two supplementary angles are in the ratio 7 : 5. Find the angles.

Two complementary angles are in the ratio 7 : 8. Find the angles.

Find the angle that is three times its complementary angle.

Use the adjoining figure to find: (i) ∠BOD (ii) ∠AOC

For an angle y°, find:
(i) its supplementary angle.
(ii) its complementary angle.
(iii) the value of y° if its supplement is four times its complement.

The measures of two supplementary angles are (3x + 15)° and (2x + 5)°. Find x.

Two adjacent angles forming a linear pair are in the ratio 7:5, find the angles.

In the given figure ; AOC-is a straight line. If angle AOB = 50°, angle AOE = 90° and angle COD = 25° ; find the measure of: (i) angle BOC
(ii) angle EOD
(iii) obtuse angle BOD
(iv) reflex angle BOD
(v) reflex angle COE.

In the given figure:
(i) If ∠AOB = 45°, ∠BOC = 30° and ∠AOD= 110°; find : angles COD and BOD.
(ii) If ∠BOC = ∠DOC = 34° and ∠AOD = 120° ; find : angle AOB and angle AOC.
(iii) If ∠AOB = ∠BOC = ∠COD = 38° find : reflex angle AOC and reflex angle AO

In the given figure, lines AB and CD intersect at point O.
(i) Find the value of ∠a.
(ii) Name all the pairs of vertically opposite angles.
(iii) Name all the pairs of adjacent angles.
(iv) Name all the reflex angles formed and write the measure of each.

In the given figure, PQR is a straight line. Find x. Then complete the following:
(i) ∠AQB = _______
(ii) ∠BQP = _______
(iii) ∠AQR = _______