Question

two adjacent angle of a quadrilateral measure is 130 and 20 . then the sum of remaining two angles are ?

Answer 1

sum of remaining two angles are =360°-130°-20°=210°

Answer 2

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We know that sum of all angles of a quadrilateral is 360°

Let the sum of other two sides of the quadrilateral be "x"

130° + 20° + x = 360°

150° + x = 360°

x = 360° - 150°

x = 210°

Hence, the sum of other two sides of the quadrilateral is 210°

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