Which of the following is a pair of supplementary angles?

Which of the following is a pair of supplementary angles?

1) 60° and 120° are supplementary angles. 2) 135° and 45° are supplementary angles. 3) 50° and 140° are not supplementary angles because their sum is not equal to 180 degree.

Can two angles be supplementary if both of them are acute?

∴Sum of two acute angles cannot make a supplementary angle. As we know that the right angle is always equal to 900. So, the sum of two right angles is always equal to 1800.

Which pair will be supplementary?

If sum of two angles is 1800, then they are called supplementary angles.So in the given figure only (i) and (ii) are the pair of supplementary angles.

Can a supplementary angle be negative?

Complementary angles add up to 90 degrees. … The angle that is 28 degrees has a complement of 90 – 28 = 62 degrees. The angle that is 92 degrees does not have a complement – since the complement would need to be negative 2 degrees, and negative angles are not allowed in the definition of complementary angles.

Are same side interior angles supplementary?

Same side interior angles are two angles that are on the same side of the transversal and on the interior of (between) the two lines. Same Side Interior Angles Theorem: If two parallel lines are cut by a transversal, then the same side interior angles are supplementary.

What is the supplementary angle of 40 degree?

140°

How do you make a 40 degree angle without a protractor?

Bisecting angles without a protractor

1. Place the compass on the vertex of the angle (point B). Draw an arc across each arm of the angle.
2. Place the compass on the point where one arc crosses an arm and draw an arc inside the angle.
3. Use a ruler to join the vertex to the point where the arcs intersect (D).

What is a 40 degree angle called?

Acute Angle: An angle whose measure is more than 0° but less than 90° is called an acute angle. Angles having magnitudes 30°, 40°, 60° are all acute angles.

How do you make a 180 angle?

How to Find 180-Degree Angle?

1. Draw a straight line which will be the arm of angle.
2. Put a dot at one end of the line.
3. Now place the center of the protractor above the dot or vertex and match the baseline of the protractor along with the arm of the angle.
4. Mark the angle 180 degrees with a dot.