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# (a) Identify three triangles in the figure.

(b) Write the names of seven angles.

(c) Write the names of six line segments.

(d) Which two triangles have ∠B in common?

We use the concepts of angles and triangles to answer the given question.

a) The three triangles can be identified as Δ ABD, Δ ADC and Δ ABC.

b) The seven angels are ∠ABD, ∠BDA, ∠ADC, ∠DCA, ∠CAB, ∠CAD and ∠DAB

c) The six-line segments are AB, AC, BC, BD, DC and AD.

d) Δ ABD and Δ ABC have ∠B as common.

Class 6 Maths NCERT Solutions Chapter 12 Exercise 12.1 Question 2

## (a) Identify three triangles in the figure. (b) Write the names of seven angles. (c) Write the names of six line segments. (d) Which two triangles have ∠B in common?

**Summary:**

Using the concepts of angles and triangles, it can be concluded that (a) the three triangles are Δ ABD, Δ ADC and Δ ABC (b) the seven angels are ∠ABD, ∠BDA, ∠ADC, ∠DCA, ∠CAB, ∠CAD and ∠DAB (c) The six-line segments are AB, AC, BC, BD, DC and AD and (d) Δ ABD and Δ ABC have ∠B as common.

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