Lines and intersect at

MATHEMATICS · Single correct · CBSE · Mathematics · Lines and Angles · Lines and Angles

Problem

Lines

EF

and

GH

intersect at

O

. The four angles around

O

are given by

\angle EOG = (6y - 4)^{\circ}

\angle GOF = (7y - 6)^{\circ}

\angle FOH = (3y + 20)^{\circ}

, and

\angle HOE = (5y + 10)^{\circ}

. Find the value of

y

. (a)

6

(b)

8

(c)

7

(d)

9