**1. Complete the following statements:**

**(a) Two line segments are congruent if ______________________________.**

**Solution:** Two line segments are congruent if they have the same length.

**(b) Among two congruent angles, one has a measure of 70o; the measure of the other angle is _____.**

**Solution:** Among two congruent angles, one has a measure of 70^{o}; the measure of the other angle is 70^{o}

**(c) When we write ∠A = ∠B**, **we actually mean.**

**Solution:** When we write ∠A = ∠B, we actually mean m ∠A = m ∠B.

**2. Give any two real-life examples for congruent shapes.**

**Solution:** The real-life examples for congruent shapes are:

(i) Biscuit of same packets.

(ii) Size of chocolate in the same brand.

(iii) Size of pens in the same brand

(iv) Sharing blades of the same brand and size.

**3. If ΔABC ≅ ΔFED under the correspondence ABC ↔ FED, write all the corresponding congruent parts of the triangles.**

**Solution:** If pairs of corresponding sides and corresponding angles are equal to a triangle then two triangles are congruent.

All the corresponding congruent parts of the triangles ABC and triangle FED are,

**Solution:**

Let us draw a rough figure according to the given question:

From above the figure, we can say that,

The part of ΔBCA that correspond to,

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