Pairs of Angles (Linear Pair, Vertically Opposite) MCQs
Practice Pairs of Angles (Linear Pair, Vertically Opposite) multiple-choice questions from Lines and Angles (Class 9 Maths) - tap an answer for instant feedback and a step-by-step solution. Practice the full set free on the RankByte app.
Pairs of Angles (Linear Pair, Vertically Opposite)Quiz - Solve & Score
Q1. Linear pair: one is 25. Other?
- A.155
- B.25
- C.65
- D.156
Answer: A. 155
Given 25, asked for the unknown. Apply the standard chapter relation to the data. = 180-25 = 155. So option A) 155. Others fail: option B) '25' doesn't hold - Sum 180.
Q2. Linear pair: one is 95. Other?
- A.85
- B.95
- C.-5
- D.86
Answer: A. 85
Diagnose the question type - a typical math numerical. The data on the table: 95. We are after the quantity the stem asks for. Pick the chapter relation that contains every given quantity and the unknown; rearrange for the unknown. Numbers in: = 180-95 = 85. Lock in option A) 85. Trap-watch: option B) '95' doesn't hold - Sum 180.
Q3. Linear pair: one is 158. Other?
- A.22
- B.158
- C.-68
- D.23
Answer: A. 22
Reading the problem, 158 (math, chapter 'Lines and Angles'). Our target: the unknown asked. The relevant chapter relation links the data to the unknown - rearrange it to isolate the quantity we are solving for. The arithmetic is: = 180-158 = 22. So the correct choice is A) 22. As for the others, option B) '158' doesn't hold - Sum 180.
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