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Important Questions

Constructions (Using Ruler and Compass only) — Important Questions

ICSE · Class 8 · Mathematics

104 important questions from Constructions (Using Ruler and Compass only) for ICSE Class 8 Mathematics, with answers.

104 questions40 flashcards9 formulas & key relations5 concepts

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104 Questions·
multiple choicetrue false

Important Questions from Constructions (Using Ruler and Compass only)

1multiple choice
3 marks

A line is to be constructed parallel to a given line at a fixed distance. If the distance is 3.6 cm, what is the radius used in the arc from point P to locate point R?

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3.6 cm

The construction for a line parallel to a given line at a given distance uses an arc with radius equal to the given distance. Here the distance is 3.6 cm, so the radius is 3.6 cm.

2multiple choice
3 marks

A rectangle is to be constructed when one side AB = 4.8 cm and diagonal AC = 6.2 cm. After drawing AB and the right angle at B, what arc radius is used from A to cut BP at C?

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6.2 cm

The point C lies on the arc centered at A with radius equal to the diagonal AC. Since AC = 6.2 cm, the arc radius from A must be 6.2 cm.

3multiple choice
3 marks

A rhombus is to be constructed when one side AB = 5 cm and diagonal AC = 7 cm. What radius is used from A and B to locate point C?

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7 cm from A and 5 cm from B

To find C, one arc is drawn with A as centre and radius AC = 7 cm. Another arc is drawn with B as centre and radius AB = 5 cm. Their intersection gives C.

4multiple choice
3 marks

A quadrilateral ABCD is to be constructed when four sides and one diagonal are given. If AB = 4 cm, BC = 3.8 cm, CD = 3.5 cm, AD = 4.2 cm, and AC = 5.5 cm, what lengths are used to locate point C from A and B?

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5.5 cm from A and 3.8 cm from B

To locate C, an arc of radius AC is drawn from A and an arc of radius BC is drawn from B. Here AC = 5.5 cm and BC = 3.8 cm, so those are the needed lengths.

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Frequently Asked Questions

What are the important topics in Constructions (Using Ruler and Compass only) for ICSE Class 8 Mathematics?
Key topics in Constructions (Using Ruler and Compass only) include Angle Construction Basics, Bisector of an Angle and of a Line Segment, Perpendiculars and Parallels, Quadrilateral Constructions. Study these first, then practise questions on each for Class 8 exams.
How many important questions are there in Constructions (Using Ruler and Compass only)?
Super Tutor has 104 practice questions for Constructions (Using Ruler and Compass only), including multiple choice, true false questions. A sample with answers is on this page.

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Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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