Mathematics

In the figure, AOB is a straight line. The measure of $\Delta COD$ is equal to

$100^0$

SOLUTION
$AOB$ is a straight line

$\therefore x+{ 20 }^{ \circ }+2x-{ 20 }^{ \circ }+{ 60 }^{ \circ }={ 180 }^{ \circ }$

$\Rightarrow 3x={ 180 }^{ \circ }-{ 60 }^{ \circ }\\$
$\Rightarrow x={ 40 }^{ \circ }$

$\\ \angle COD=2x+{ 20 }^{ \circ }\\$
$\angle COD=(2\times { 40 }^{ \circ })+{ 20 }^{ \circ }={ 100 }^{ \circ }$

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Single Correct Medium Published on 09th 09, 2020
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