# GSEB Solutions Class 7 Maths Chapter 7 Congruence of Triangles Ex 7.1

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Gujarat BoardĀ GSEB Textbook Solutions Class 7 Maths Chapter 7 Congruence of Triangles Ex 7.1 Textbook Questions and Answers.

## Gujarat Board Textbook Solutions Class 7 Maths Chapter 7 Congruence of Triangles Ex 7.1

Question 1.
Complete the following statements:
(a) Two line segments are congruent
(b) Among two congruent angles, one has a measure of 70Ā°; the measure of the other angle is .
(c) When we write ā A = ā B, we actually mean
Solution:
(a) Two line segments are congruent if they have the same length.
(b) Among two congruent angles, one has a measure of 70Ā°; the measure of the other angle is 70Ā°.
(c) When we write ā A = ā B, we actually mean mā A = mā B.

Question 2.
Give any two real-life examples for congruent shapes.
Solution:
(i) Shaving blades of the same brand.
(ii) Biscuits of the same type in the same packet.

Question 3.
If āABC ā āFED under the correspondence ABC ā FED, write all the corresponding congruent parts of the triangles.
Solution:
All the corresponding congruent parts of āABC and āFED are:
ā A ā ā F, ā B ā ā E, ā C ā ā D
$$\overline{A B}$$ ā $$\overline{F E}$$, $$\overline{B C}$$ ā $$\overline{E D}$$, $$\overline{C A}$$ ā $$\overline{D F}$$

Question 4.
If āDEF ā āBCA, write the part(s) of āBCA that corresponding to
(i) ā E
(ii) ā EF
(iii) ā F
(iv) ā DF
Solution:
āµ āDEF ā āBCA
ā“ (i) ā E ā ā C
(ii) ā EF ā ā CA
(iii) ā F ā ā A
(iv) ā DF ā ā BA