Q. 24.1( 18 Votes )

# <span lang="EN-US

Answer :

X=27.5, =77.5° =47.5°

AOB is a straight line

Therefore, + COD + = 180°

(3x - 5)° + 55° + (x + 20)° = 180°

3x - 5° + 55° + x + 20° = 180°

4x = 180° - 70°

4x = 110°

x = 27.5° = (3x - 5)°

= 3×27.5 – 5 = 77.5° = (x + 20)°

= 27.5 + 20 = 47.5°

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