Question

Which of the following instruments other than a compass will be used to construct an isosceles triangle whose altitude and vertex angle is given?

• A. Protractor
• B. Scale
• C. ${60}^o-{30}^o$ set square
• D. ${45}^o$ set square

Answer 1

Answer: (A), (B)

The correct options are
A Protractor
B Scale

For the construction wherein the altitude and the vertex angle is given, a compass, scale and a protractor will be needed. A compass is required to cut the required radius whereas a protractor is used for measuring the angles from the vertex point.