Question

Line Q // line R, line P is the transversal .If , a and b are interior

angles then find a: b

Solution - r = ,

r = a - - - - - - - -( vertically opposite angles)

_____

a and b are interior angles,

b = _____ - _____ b = _______

a : b = ____ : _____​

Answer 1

Answer:

Given:l∥m

sum of the interior angles on the same side of transversal is 180

∘

b+52

∘

=180

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⇒b=180

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−52

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=128

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And a=52

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∴a=52

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,b=128

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