In figure 1₁ || 12, then the value of x is
Answers
Answer:
value of x is 70 degrees.
Given : A figure
To Find : value of x
Solution:
Sum of angles in a triangle = 180°
Assume third angle in triangle formed below line is y
=> 45° + 35° + y = 180°
=> y = 100°
Vertical opposite angles are equal
This Vertical opposite angle and x are Interior angles
Interior angles are supplementary
=> x + 100° = 180°
=> x = 80°
Properties of angles formed by transversal line with two parallel lines :
• Corresponding angles are congruent.
• Alternate angles are congruent. ( Interiors & Exterior both )
• Interior angles are supplementary. ( adds up to 180°)
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