Q1 of 805 Page 12

Which of the following angles can be constructed using ruler and compass only?

45° can be drawn using a ruler and compass. We can bisect this angle using angle bisectors to get 22.5°. So, 22.5° can be constructed using ruler and compass only.

More from this chapter

All 805 →
13

Construct a in which BC = 4.5 cm, and the sum of the other two sides is 8 cm.

 14

Construct a in which BC = 5.2 cm, and the difference of the other two sides is 3.5 cm.

 2

Which of the following angles can be constructed using ruler and compass only?

 3

Which of the following angles cannot be constructed using ruler and compass only ?