Question

what value of x would make AOB a straight line the two angles are 7x+20,3x.​

Answer 1

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$\huge{\underline{\underline{\sf{\blue{SOLUTION:-}}}}}$

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$\sf{\underline{\green{AnswEr:-}}}$

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• The required value of x = 16°

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$\sf{\underline{\green{Given:-}}}$

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• AOB isa straight line, the two angles are 7x + 20, 3x.

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$\sf{\underline{\green{Find:-}}}$

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• The required value of x = ?

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$\sf{\underline{\green{Explanation:-}}}$

$\sf{\underline\purple{We\: know\:that:-}}$

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$\bigstar\boxed{\sf{\red{Straight \:line \:has\:an\: angle\:of\:180\degree}}}$

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$\sf{\underline{\pink{Putting\:the\:values:-}}}$

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$\longrightarrow \sf {7x + 20 + 3x = 180 }$

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$\longrightarrow \sf {10x = 180 - 20}$

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$\longrightarrow \sf {10x = 160}$

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$\longrightarrow \sf {x = \cancel\dfrac{160}{10}}$

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$\longrightarrow{\gray{ \underbrace{\boxed{\underline{\underline{\blue{ \tt x = 16\degree }}}}}}}$

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$\:\:\:\:\dag\bf{\underline{\underline \red{Hence:-}}}$

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• The required value of x is 16°.

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$\rule{200}{2}$

Answer 2

Step-by-step explanation:

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