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# NCERT Solutions for Class 7 Maths Exercise 10.2

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NCERT solutions for Maths Practical Geometry

## NCERT Solutions for Class 7 Maths Practical Geometry

Class –VII Mathematics (Ex. 10.2)

###### Question 1.Construct {tex}\Delta {/tex}XYZ in which XY = 4.5 cm, YZ = 5 cm and ZX = 6 cm.

To construct: {tex}\Delta {/tex}XYZ, where XY = 4.5 cm, YZ = 5 cm and ZX = 6 cm.

Steps of construction:

(a) Draw a line segment YZ = 5 cm.

(b) Taking Z as centre and radius 6 cm, draw an arc.

(c) Similarly, taking Y as centre and radius 4.5 cm, draw another arc which intersects first arc at point X.

(d) Join XY and XZ.

It is the required {tex}\Delta {/tex}XYZ.

###### Question 2.Construct an equilateral triangle of side 5.5 cm.

To construct: A {tex}\Delta {/tex}ABC where AB = BC = CA = 5.5 cm

Steps of construction:

(a) Draw a line segment BC = 5.5 cm

(b) Taking points B and C as centers and radius 5.5 cm, draw arcs which intersect at point A.

(c) Join AB and AC.

It is the required {tex}\Delta {/tex}ABC.

NCERT Solutions for Class 7 Maths Exercise 10.2

###### Question 3.Draw {tex}\Delta {/tex}PQR with PQ = 4 cm, QR = 3.5 cm and PR = 4 cm. What type of triangle is this?

To construction: {tex}\Delta {/tex}PQR, in which PQ = 4 cm, QR = 3.5 cm and PR = 4 cm.

Steps of construction:

(a) Draw a line segment QR = 3.5 cm.

(b) Taking Q as centre and radius 4 cm, draw an arc.

(c) Similarly, taking R as centre and radius 4 cm, draw an another arc which intersects first arc at P.

(d) Join PQ and PR.

It is the required isosceles {tex}\Delta {/tex}PQR.

NCERT Solutions for Class 7 Maths Exercise 10.2

###### Question 4.Construct {tex}\Delta {/tex}ABC such that AB = 2.5 cm, BC = 6 cm and AC = 6.5 cm. Measure {tex}\angle {/tex}B.

To construct :{tex}\Delta {/tex}ABC in which AB = 2.5 cm, BC = 6 cm and AC = 6.5 cm.

Steps of construction:

(a) Draw a line segment BC = 6 cm.

(b) Taking B as centre and radius 2.5 cm, draw an arc.

(c) Similarly, taking C as centre and radius 6.5 cm, draw another arc which intersects first arc at point A.

(d) Join AB and AC.

(e) Measure angle B with the help of protractor.

It is the required {tex}\Delta {/tex}ABC where {tex}\angle {/tex}B = {tex}80^\circ .{/tex}

## NCERT Solutions for Class 7 Maths Exercise 10.2

NCERT Solutions Class 7 Maths PDF (Download) Free from myCBSEguide app and myCBSEguide website. Ncert solution class 7 Maths includes text book solutions from Class 7 Maths Book . NCERT Solutions for CBSE Class 7 Maths have total 15 chapters. 7 Maths NCERT Solutions in PDF for free Download on our website. Ncert Maths class 7 solutions PDF and Maths ncert class 7 PDF solutions with latest modifications and as per the latest CBSE syllabus are only available in myCBSEguide.

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