Question

If x and 1200forms the co-interior angle, find the value of x

Answer 1

Appropriate question: If x and 120° forms the co-interior angle, find the value of x

Need to find: x

Concept: Co-interior angles are supplementary.

Sum of supplementary angles is 180°

Solution:

T H E R E F O R E,

➡ x + 120° = 180°

➡ x = 180° - 120°

➡ x = 60°

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• Henceforth,the value of angle x is 60°.

Answer 2

★ Correct Question :-

• If x and 120° forms the co - interior angle, then find the value of x .

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★ Given :-

• Angle = 120° .

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★ To Find :-

• The value of x .

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★ Solution :-

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∓ Here, it is given that, x and 120° forms the co - interior angle . And, we have to find the value of x .

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• Now, let's solve step by step -----

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As we know, Co - interior angles are Supplementary angles . And the Sum of Supplementary Angles is 180° .

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$\dashrightarrow \: \sf \pmb{x + 120\degree = 180\degree} \\ \\ \dashrightarrow \: \sf \pmb{x = 180 \degree - 120 \degree} \\ \\ \dashrightarrow \: \sf \pmb{x =60 \degree }$

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★ Hence :-

• The value of x = 60° .

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