Question

the adjoining figure, if x = 30°, find y.​

Answer 1

Answer:

As we know,

→2x+3y= 180°

Given:

X=30°

Solution:

2×30+3y=180°

3y = 180°-60°

y = 120°/3

y= 40°

Answer 2

Answer:

y=40°.

Step-by-step explanation:

Given a figure and x = 30°.

To find the value of y.

By figure we can see that, $\angle CDB$  and $\angle BDC$  form linear pair.

=>  $\angle CDB+ \angle BDC= 180^\circ$

=>                  2x+3y = 180°

=>                  60°+3y=180°

=>                          3y=120°

=>                            y=40°

Therefore, the value of  y=40°.

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