Question

Find the value of unknown from the following figures:

Answer 1

Given:

We can say that from the given diagram $125°,85°,80°,x$ forms a complete angle.

$125°+85°+80°+x=360°$ $[$Since, complete angle is $360°$$]$

$\Rightarrow$$290°+x=360°$

$\Rightarrow$$x=360°-290°$

$\Rightarrow$$x=70°$

Hence, the value of $x$ is $70°$.