NCERT Solutions for Class 7 Maths Exercise 7.1

NCERT Solutions for Class 7 Maths Exercise 7.1 book solutions are available in PDF format for free download. These ncert book chapter wise questions and answers are very helpful for CBSE exam. CBSE recommends NCERT books and most of the questions in CBSE exam are asked from NCERT text books. Class 7 Maths chapter wise NCERT solution for Maths Book all the chapters can be downloaded from our website and myCBSEguide mobile app for free.

NCERT solutions for Maths Congruence of Triangles Download as PDF

NCERT Solutions for Class 7 Maths Congruence of Triangles

Class –VII Mathematics (Ex. 7.1)

Question 1.Complete the following statements:

1. Two line segments are congruent if _______________.
2. Among two congruent angles, one has a measure of {tex}70^\circ ,{/tex} the measure of other angle is _______________.
3. When we write {tex}\angle {/tex}A = {tex}\angle {/tex}B, we actually mean _______________.

Answer:

(a) they have the same length

(b) {tex}70^\circ {/tex}

(c) {tex}m\angle {/tex}A = {tex}m\angle {/tex}B

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Question 2.Give any two real time examples for congruent shapes.

Answer:

(i) Two footballs

(ii) Two teacher’s tables

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NCERT Solutions for Class 7 Maths Exercise 7.1

Question 3.If {tex}\Delta {/tex}ABC {tex} \cong \Delta {/tex}FED under the correspondence ABC {tex} \leftrightarrow {/tex} FED, write all the corresponding congruent parts of the triangles.

Answer:

Given: {tex}\Delta {/tex}ABC {tex} \cong {/tex}{tex}\Delta {/tex}FED.

The corresponding congruent parts of the triangles are:

(i) {tex}\angle {/tex}A {tex} \leftrightarrow {/tex}{tex}\angle {/tex}F

(ii) {tex}\angle {/tex}B {tex} \leftrightarrow {/tex}{tex}\angle {/tex}E

(iii) {tex}\angle {/tex}C {tex} \leftrightarrow {/tex}{tex}\angle {/tex}D

(iv) {tex}\overline {{\text{AB}}} {/tex}{tex} \leftrightarrow {/tex}{tex}\overline {{\text{FE}}} {/tex}

(v) {tex}\overline {{\text{BC}}} {/tex}{tex} \leftrightarrow {/tex}{tex}\overline {{\text{ED}}} {/tex}

(vi) {tex}\overline {{\text{AC}}} {/tex}{tex} \leftrightarrow {/tex}{tex}\overline {{\text{FD}}} {/tex}

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NCERT Solutions for Class 7 Maths Exercise 7.1

Question 4.If {tex}\Delta {/tex}DEF {tex} \cong \Delta {/tex}BCA, write the part(s) of {tex}\Delta {/tex}BCA that correspond to:

i.{tex}\angle {/tex}E

ii.{tex}\overline {{\text{EF}}} {/tex}

iii.{tex}\angle {/tex}F

iv.{tex}\overline {{\text{DF}}} {/tex}

Answer:

Given: {tex}\Delta {/tex}DEF {tex} \cong {/tex}{tex}\Delta {/tex}BCA.

(i) {tex}\angle {/tex}E {tex} \leftrightarrow {/tex}{tex}\angle {/tex}C

(ii) {tex}\overline {{\text{EF}}} {/tex}{tex} \leftrightarrow {/tex}{tex}\overline {{\text{CA}}} {/tex}

(iii) {tex}\angle {/tex}F {tex} \leftrightarrow {/tex}{tex}\angle {/tex}A

(iv) {tex}\overline {{\text{DF}}} {/tex}{tex} \leftrightarrow {/tex}{tex}\overline {{\text{BA}}} {/tex}

NCERT Solutions for Class 7 Maths Exercise 7.1

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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