Construct an obtuse angled triangle which has a base of 5.5 cm and base angles of 30° and 120°.

Solution:

Steps of construction

1. Construct a line segment BC of length 5.5 cm

2. Construct an angle of 120° on the point B and produce it to ray Y.

3. Construct an angle of 30° on the point C and produce it to ray X

4. Now extend BY and CX to intersect at the point A.

Therefore, ABC is the required triangle.

✦ Try This: Construct an obtuse angled triangle which has a base of 4.5 cm and base angles of 60° and 180°.

☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 10

NCERT Exemplar Class 7 Maths Chapter 12 Problem 100

Construct an obtuse angled triangle which has a base of 5.5 cm and base angles of 30° and 120°.

Summary:

An obtuse angled triangle which has a base of 5.5 cm and base angles of 30° and 120° is constructed.

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