Question

Q12: Two angles, angle 1 and angle 2 form a linear pair. If we increase the measure of angle 1, then measure of angle 2 will

a) decrease
b) increase
c) remain unchanged​

Answer 1

Answer:

a) decrease

Step-by-step explanation:

suppose you have a straight line

so it will form a linear pair

you make a straight line in your copy so take a angle of angle 40 or any other

next angle of your it will be 140

you erase that angle and make a angle of 90 degree

other angle will be 90 degree

so what you have seen that 140 degree e is greater than 40 when we increase the 40 degree to 90 degree so the 140 degrees to 90 degree

Answer 2

If we increase the measure of angle 1, then the measure of angle 2 will a) decrease.

Step-by-step explanation:

• Linear pair angles are adjacent angles. Formation of such angles require intersecting lines.

• When two lines intersect at one point, then the adjacent two angles are called linear pair angles. Sum of linear pair angles is always $180^{o}$ because both angles lie on a straight line.

• From the figure,

∠$AOP +$∠$BOP=180^{o}$

∠$1+$∠$2=180^{o}$

If one of the angles is increased, the other angle will decrease as the sum of both the angles is fixed i.e. $180^{o}$.