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Understanding Quadrilaterals — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSUnderstanding Quadrilaterals2 Marks
Question
Find $x$ in figure:
✓

Answer

The sum of the measures of the exterior angles of any polygon is $360^\circ$.
So, $x + 70^\circ+ 60^\circ+ 90^\circ+ 90^\circ= 360^\circ$
$\Rightarrow$ $x + 310^\circ= 360^\circ$
$\Rightarrow$ $x = 360^\circ- 310^\circ$
$\Rightarrow$ $x = 50^\circ$

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