Q2 of 22 Page 109

Write True or False in each of the following. Give reasons for your answer:

An angle of 42.5° can be constructed.

False

42.5° = 1/2 × 85°


We cannot construct 85° with the help of ruler and compass.


∴ Angle of 42.5° cannot be constructed.


More from this chapter

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3

The construction of a triangle ABC, given that BC = 3 cm, DC = 60° is possible when difference of AB and AC is equal to:

 1

Write True or False in each of the following. Give reasons for your answer:

An angle of 52.5° can be constructed.

 3

Write True or False in each of the following. Give reasons for your answer:

A triangle ABC can be constructed in which AB = 5 cm, ∠A = 45° and BC + AC = 5 cm.

 4

Write True or False in each of the following. Give reasons for your answer:

A triangle ABC can be constructed in which BC = 6 cm, ∠C = 30° and AC – AB = 4 cm.