Question

Determine at least three times during the day when the hands on a clock form each of the following angles. Explain. a. right angle b. obtuse angle c. congruent right angles

Answer 1

1) Let's sketch this out to better grasp it.

A) Right Angle. A right angle is a 90º angle so we have the following possibilities:

Note that a whole circle has 360º and from point 1 to 2 we have 30º since:

`(360)/(12)=30`

So we for the Right Angles on the clock:

3:00, 9:00 and 9:30

B) Obtuse angle

An obtuse angle is an angle whose measure is greater than 90º.