Question

EF//GH angle Eab =65 and angle ACH=100 determine measure of angles abc and acb

Answer 1

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Answer 2

Given : EF || GH angle Eab =65 and angle ACH=100

To Find : determine measure of angles abc and acb

Solution:

∠ACB & ∠ACH form a linear pair

=> ∠ACB + ∠ACH = 180°

∠ACH = 100°

=> ∠ACB + 100° = 180°

=>  ∠ACB  = 80°

EF || GH  & AB is transversal

∠ABC  = ∠EAB    alternate interior angle

∠EAB    = 65°

∠ABC =  65°

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