Question

Find value of x in the given figure ​

Answer 1

Answer:

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a)100°

Answer 2

Answer:

(a) 100°

Step-by-step explanation:

y:z=4:5

let,

y=4x

z=5x

a.t.q.

4x+5x=180° (opposite angles)

9x=180°

x=180°/9

x=20°

therefore,

y=4x=4×20°

y=80°

z=5x=5×20°

z=100°

then,

x+y=180°(Corresponding angles)

x+80°=180°

x=180°-80°

x=100°

100° is the value of x