Question

if you= 25°,find X

plz tell the answer ​

Answer 1

Correct Question:

If y = 25°, find x

Given:

• y = 25°

To find:

1. Value of x

Method:

First Let's understand the concept used.

Concept used:

Sum of 2 angles lying on a straight line is 180°

This is known as 'Linear Pair of Angles'

Applying this concept,

(5y + 21) + (2x) = 180°

⇒ 5y + 21 + 2x = 180°

⇒ 5(25) + 21 + 2x = 180°           [ ∵ y = 25°]

⇒ 125 + 21 + 2x = 180°

⇒ 146 + 2x = 180°

⇒ 2x = 180 - 146

⇒ 2x = 34

⇒ x = 34 ÷ 2

∴ x = 17°

Additional Information:

• Angle Sum Property: The sum of all angles in any triangle is 180°
• Alternate Interior Angles: If 2 parallel lines are cut by a transversal, then the angles lying on the either side in the interior of the transversal are Equal.