Teachoo MCQ Test

Short Quiz

Preparing for CBSE

Chapter 5 Class 7 - Parallel and Intersecting Lines (Ganita Prakash) | 5 questions

Timed test. Answer every question before time runs out. Correct answers and solutions appear after submission.
Time remaining 480
Question 1 of 5
Advertisement
Question 1 of 5

Reason (R): Equating the corresponding angles gives \(4x+12=6x-20\), so \(x=16\).

Assertion (A): The scaffold-angle equation gives \(x=14\).

Scaffold-angle assertionCorresponding angles on parallel rails carry expressions.lmt(4x+12)°(6x−20)°
Check the claimed algebraic result.
Select one option. Answers are shown after the test.
Question 2 of 5

Reason (R): Solving \(4x+54=6x+24\) gives \(x=12\).

Assertion (A): The marked vertically opposite angles give \(x=15\).

Opposite-angle assertionTwo opposite obtuse arcs contain the expressions 4x plus 54 and 6x plus 24.O(4x+54)°(6x+24)°
Judge the stated value of x from the equal arcs.
Select one option. Answers are shown after the test.
Question 3 of 5

Reason (R): Nine ratio-parts fill \(90^\circ\), so one part is \(10^\circ\).

Assertion (A): When the three parts of the right angle are in the ratio \(2:3:4\), the largest part is \(40^\circ\).

A right angle split into three marked partsA right angle at O is divided by two rays. Each part has a visible arc.O2 parts3 parts?
The square marks 90°. The dashed amber arc is required.
Select one option. Answers are shown after the test.
Question 4 of 5

Reason (R): They imply parallelism because \(70^\circ=110^\circ\).

Assertion (A): The \(70^\circ\) and \(110^\circ\) same-side interior angles imply that the lines are parallel.

Supplementary-interior assertionTwo left-side interior arcs on unmarked lines are 70 and 110 degrees.lmtparallel?70°110°
Judge the conclusion and its proposed reason.
Select one option. Answers are shown after the test.
Question 5 of 5
Adjacent angles \(\angle a\) and \(\angle d\) are in the ratio \(2:3\). Find the vertically opposite angle \(\angle c\).
Ratio at an intersectionAdjacent angles a and d are in the ratio 2 to 3; angle c is required.O2 parts?3 parts
The curved arcs show which ratio parts are adjacent and which angle is opposite.
Select one option. Answers are shown after the test.