Maths-
General
Easy
Question
The values of x y, in the following figure is

- 30°,50°
- 40°,60°
- 50°,70°
- 45°,65°
Hint:
In this question, we have to find the value of x and y using the figure given. We know that sum of angles formed in a straight line is always 180
. So, using this formula we can find the required value of x and substitute in other equation formed to find the value of y.
The correct answer is: 40°,60°

As CD is straight line
So, x + 20
+ 3x = 180
[sum of angles in a straight line is 180
]
4x = 160
x = 40
Also, AB is a straight line
So, 3x + y = 180
[sum of angles in a straight line is 180
]
3
40
+ y = 180
120
+ y = 180
y = 60
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