Fill in the blanks with suitable answers.

(i) A triangle has ………. Vertices.

(ii) Triangles are grouped into ………. types according to their sides.

(iii) Triangles are grouped into ………. types according to their angles.

(iv) In a scalene triangle three sides are not ……….

(v) If one angle of a triangle is 90°, the triangle is said to be ………..

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Solution

(i) A triangle has three vertices.

(ii) Triangles are grouped into three types according to their sides.

(iii) Triangles are grouped into four types according to their angles.

(iv) In scalene triangle three sides are not equal

(v) If one side of a triangle is 90°, the triangle is said to be right angled triangle.

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