Find the measure of a

Kamal Nayan asked Nov 3, 2022

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Kamal Nayan asked Nov 3, 2022

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20 votes

Answer:

C. 70°

Explanation:

but c = 180° - (2×20°) = 140°

b = 180° - c

b = 180° - 140° = 40°

${ \sf{a = (1)/(2)c }} \\ { \sf{a = ( (1)/(2) * 140 \degree)}} \\ { \sf{a = 70 \degree}}$

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