Question

one angle of a quadrilateral is 120 degree and the remaining three angles are equal find the measure of three equal angles of the quadrilateral​

Answer 1

$\huge\orange{\boxed{\boxed{\boxed{Answer}}}}$

60°

Step-by-step explanation:

$\blue{\boxed{Quadrilateral \:has \:4 \:angles \:and \:these \:angles \:sum \:upto\:360 \:degrees}}$

$\pink{\boxed{1st \:angle \:measures \:120\: degrees \:and \:other\: three \:are\: equal}}$

$\purple{\boxed{So, \:the\: three \:angles \:will\: be\: considered \:as \:3x \:(they\: are\: equal)}}$

120° + 3x = 360°

3x = 360° - 120°

3x = 240°

x = 240/3

x = 60°

∴, the three angles measure 60.°

$\pink{\boxed{\boxed{Hope \: this \: helps \: you}}}$