Measuring angles with a protractor
Answers are for parents and teachers.
1
Two angles of a triangle are 45° and 75°. How many degrees is the third?
60
2
One of two adjacent angles on a line is 128°. How many degrees is the other?
52
3
A circle is split into 18 equal sectors. How many degrees is each?
20
4
At 11:00 the minute hand is on 12 and the hour hand on 11. How many degrees is the (smaller) angle between them?
30
5
A diagonal of a square splits its right angle into two equal angles. How many degrees is each?
45