Question

5. In figure, AB IT ED, the value of x si
DA
n figure, AB || ED,
62
A
26
a) 26
b) 36.
c) 54
d) 62​

Answer 1

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a) 26°

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Explanation :

∵ DCE makes linear pair,

∴ ∠DCF + ∠ECF = 180°

62° + ∠ECF = 180°

∠ECF = 180° - 62°

∴ ∠ECF = 118°

In △CEF,

by angle sum property,

∠ECF + ∠FEC + ∠CFE = 180°

118° + 36° + x = 180°

154° + x = 180°

x = 180° - 154°

∴ x = 26°

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