Learn Maths Constructions, Class 9 Maths Constructions Exercise, Free Online Constructions Lessons

Class 9 Maths Study Material

An Educational platform for Preparation and Practice Class 9. Kidsfront provide unique pattern of learning Maths with free online comprehensive study material in the form of QUESTION & ANSWER for each Chapter of Maths for Class 9. This study material help Class 9, Maths students in learning every aspect of Constructions. Students can understand Constructions concept easily and consolidate their learning by doing Online Practice Tests on Maths,Constructions chapter repeatedly till they excel in Class 9, Constructions. Free ONLINE PRACTICE TESTS on Class 9, Constructions comprise of Hundreds of Questions on Constructions, prepared by the highly professionals team. Every repeat test of Constructions will have new set of questions and help students to prepare themselves for exams by doing unlimited Online Test exercise on Constructions. Attempt ONLINE TEST on Class 9,Maths,Constructions in Academics section after completing this Constructions Question Answer Exercise.

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Constructions

In triangle ABC, BC=8 cm and angle B=45°. Construction of triangle ABC is possible if AB-AC equals to

a) 12 cm
b) 1 cm
c) 9 cm
d) 10 cm

✔Answer

Correct Answer Is : 1 cm

Solution Is :

Is construction of 52.5° possible with the help of Ruler and Compass?

a) No
b) Yes
c) Maybe
d) Cant say

✔Answer

Correct Answer Is : No

Solution Is :

In triangle PQR if PQ=8 cm and angle P=60° then it is not possible to construct triangle PQR if

a) PQ>PR+QR
b) PQ c) PR>PQ
d) QR>PQ

✔Answer

Correct Answer Is : PQ
Solution Is :

In adjoining figure angle BAC=80° and AR is the bisector of angle CAB, then angle RAB is

a) 45°
b) 32.5°
c) 42.5°
d) 52.5°

✔Answer

Correct Answer Is : 42.5°

Solution Is :

A perpendicular bisector divides a line segment into_________ parts (Fill in the blanks)

a) 2 equal
b) 3 equal
c) 4 equal
d) None of the above

✔Answer

Correct Answer Is : 2 equal

Solution Is :

It is not possible to construct a triangle with which of the following pairs of angle

a) 70° and 80°
b) 80° and 102°
c) 90° and 75°
d) 130° and 49°

✔Answer

Correct Answer Is : 130° and 49°

Solution Is :

It is possible to construct a triangle ABC in which BC=5.6 cm, AC-AB=1.6 cm and angle B equals

a) 62.5°
b) 45°
c) 27.5°
d) 52.5°

✔Answer

Correct Answer Is : 45°

Solution Is :

A triangle PQRS can be constructed if its perimeter=14 cm and the base angles P and Q equal to

a) 45° and 60°
b) 42.5° and 52.5°
c) 22.5° and 47.5°
d) 27.5° and 57.5°

✔Answer

Correct Answer Is : 45° and 60°

Solution Is :

Following angle cannot be constructed

a) 22.5°
b) 15°
c) 57.5°
d) 30°

✔Answer

Correct Answer Is : 57.5°

Solution Is :

Construct an acute angled triangle ABC. (Refer figure). Construct perpendicular bisectors of AB and BC intersecting each other at O. By measurements, OA=OB=OC=

a) 3.2 cm
b) 4.8 cm
c) 3.8 cm
d) 5.4 cm

✔Answer

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Class 9 Maths Study Material

Constructions

In triangle ABC, BC=8 cm and angle B=45°. Construction of triangle ABC is possible if AB-AC equals to

Correct Answer Is : 1 cm

Solution Is :

Is construction of 52.5° possible with the help of Ruler and Compass?

Correct Answer Is : No

Solution Is :

In triangle PQR if PQ=8 cm and angle P=60° then it is not possible to construct triangle PQR if

Correct Answer Is : PQ Solution Is :

Solution Is :

In adjoining figure angle BAC=80° and AR is the bisector of angle CAB, then angle RAB is

Correct Answer Is : 42.5°

Solution Is :

A perpendicular bisector divides a line segment into_________ parts (Fill in the blanks)

Correct Answer Is : 2 equal

Solution Is :

It is not possible to construct a triangle with which of the following pairs of angle

Correct Answer Is : 130° and 49°

Solution Is :

It is possible to construct a triangle ABC in which BC=5.6 cm, AC-AB=1.6 cm and angle B equals

Correct Answer Is : 45°

Solution Is :

A triangle PQRS can be constructed if its perimeter=14 cm and the base angles P and Q equal to

Correct Answer Is : 45° and 60°

Solution Is :

Following angle cannot be constructed

Correct Answer Is : 57.5°

Solution Is :

Construct an acute angled triangle ABC. (Refer figure). Construct perpendicular bisectors of AB and BC intersecting each other at O. By measurements, OA=OB=OC=

Correct Answer Is : 4.8 cm

Solution Is :

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Correct Answer Is : PQ
Solution Is :