Question

If x -2y =30°,than find the value of x+y/90​

Answer 1

Answer:

2°

Step-by-step explanation:

x + y = 180°      [By Linear pair]

x + y/90 = 180/90

∴ x + y/90 = 2°.

Answer 2

Given ,

• AB is straight line
• x - 2y = 30 --- (i)

We know that ,

The sum of angles that are formed on a straight line is equal to 180

Thus ,

➡x + y = 180 --- (ii)

Subtract eq (i) from eq (ii) , we get

➡x + y - (x - 2y) = 180 - 30

➡3y = 150

➡y = 50

Put the value of y = 50 in eq (ii) , we get

➡x + 50 = 180

➡x = 130

Now , we have to find the value of$\sf{ \boxed{\frac{x + y}{90}}}$

Thus ,

➡(130 + 50)/90

➡180/90

➡2

$\sf \therefore \underline{The \: required \: value \: is \: 2 }$