Given:
figure l is parallel to m and t is the transversal
Concept Used:
The sum of the angles formed between two parallel lines is 180 degrees.
Vertically opposite angles are equal.
Solution:
The sum of the angles formed between two parallel lines is 180 degrees.
120-a = 180°
a= 60°
Vertically opposite angles are equal
a = x
x = 60°
Thus, correct option is (c)
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In the following table two columns are given. Match column A with column B.
Column A | Column B |
[a] Acute angle | [i] 90° |
[b] Obtuse angle | [ii] 240° |
[c] Right angle | [iii] 30° |
[d] Reflex angle | [iv] 120° |
How many lines of symmetry does the figure have?
Which of the following statements is false?
The larger of two supplementary angles is 60° more than the smaller one. The smaller angle (in degree) is:
