in 22. PO 11 RS and 2:1 = 3:2. Find the value of 26. Give reasons for your answer.
16
S
Fig. 22
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Step-by-step explanation:
PQ//RS and there's a line intersting both, its called a transversal on them
Here by this we can say some angles are equal
angle 1 = angle 4 (vertical opposite angle)
angle 2 = angle 3 (vertical opposite angle)
angle 5 = angle 8 (vertical opposite angle)
angle 6 = angle 7 (vertical opposite angle)
and
angle 1= angle 5 = angle4 = angle 8 (alternative angles)
angle 2 = angle 3 = angle 6 = angle 7 (alternative angles)
Here PQ is a straight line on which angle 1 and angle 2 are two angles
now as their ratio is 3:2
we can take angles be 3k and 2k
now sum of angles on line is 180⁰
so
3k+ 2k = 180⁰
k = 36
so angle 1 is 108⁰
angle 2 is 72⁰
as we know from above theory that angle 6 is equal to angle 2
therefore, angle 6 =72⁰
thankyou
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