Question

10) Find the value of y from the given figure
3y
40°
O
2y
А
B​

Answer 1

Answer:

3y+2y+40=180

5y = 180-40

y=140/5

y= 28

Step-by-step explanation:

hope it is helpful

Answer 2

To find,

The value of y.

Solution,

Know that the angle made by a straight line is $\[180^\circ .\]$

Therefore,

$\[\begin{array}{l} \Rightarrow 40^\circ + 3y + 2y = 180^\circ \\ \Rightarrow 40^\circ + 5y = 180^\circ \\ \Rightarrow 5y = 180^\circ - 40^\circ \end{array}\]$

Solve further,

$\[\begin{array}{l} \Rightarrow 5y = 120^\circ \\ \Rightarrow y = \frac{{120^\circ }}{5}\\ \Rightarrow y = 24^\circ \end{array}\]$

Hence, the value of y is $\[24^\circ .\]$