**Definition**

A triangle is a 3 sided polygon sometimes (but not very commonly) called the trigon. Every triangle has three sides and three angles, some of which may be the same. We can construct triangle in different given measurement. Watch Construction Of Triangle Video to learn more.

**Triangle Construction**

It’s time to build. Geometry is awesome because you get to draw pictures, play connect the dots and other fun stuff, and it’s legitimate mathematics. Here, we’re going to practice constructing triangles. This involves using a compass, a straight edge (or a ruler) to build three-sided shapes.

**Construction of a triangle when measurements of its three sides are given**

Construct ΔABC, when AB = 6 cm, BC = 7 cm and CA = 9 cm.

**Steps of construction:**

Step 1: Draw line segment BC = 7 cm.

Step 2: Draw an arc with B as the centre and the radius equal to 6 cm.

Step 3: Draw an arc with C as the centre and the radius equal to 9 cm.

Step 4: Name the point of intersection of these two arcs as A.

Step 5: Join points A and B, and points A and C.

Triangle ABC is the required triangle.

**Construction Of Triangle Video**

Useful for CBSE, ICSE, NCERT & International Students

Grade : 9

Subject : Maths

Lesson : Constructions

Topic: Construction Of Triangle Video

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