Question

© Three angles of a quadri laterals are 100,75,
an 105 the fourths angle is
(a) 50°
b) 60'
(C) 70
(d) 80​

Answer 1

Answer:

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Answer 2

ANSWER ♥️

Option: D

80°

EXPLANATION

SUM OF ALL ANGLES OF A QUADRILATERAL IS 360°

SO,

ANGLES ARE 100,75,105,x

=> 100° + 75° + 105° + x° = 360°

=> 280° + x° => 360°

=> x° = 360° - 280°

=> x° = 80°

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