Angles and constructions

A sum of 360°

Name: ______________________________Date: ______________Score: ______ / 20

1.
Three angles meet at a point. Two of them are 60° and 79°. What is the third?
°
2.
3 equal angles meet at a point. What is the size of each angle?
°
3.
Two angles meet at a point. One is 150°. What is the other?
°
4.
What do the angles around a point add up to?
1. A360°
2. B180°
3. C90°
5.
Angles of 150°, 58° and 78° could all meet at a point with nothing left over.
True False
6.
Three angles meet at a point. Two of them are 97° and 116°. What is the third?
°
7.
Three angles of a quadrilateral are each 62°. Work out the fourth angle.
°
8.
Two angles meet at a point. One is 66°. What is the other?
°
9.
Angles of 86°, 105° and 114° could all meet at a point with nothing left over.
True False
10.
Three angles meet at a point. Two of them are 143° and 52°. What is the third?
°
11.
5 equal angles meet at a point. What is the size of each angle?
°
12.
Two angles meet at a point. One is 141°. What is the other?
°
13.
Angles of 122°, 142° and 50° could all meet at a point with nothing left over.
True False
14.
Three angles of a quadrilateral are 71°, 114° and 73°. Work out the fourth angle.
°
15.
6 equal angles meet at a point. What is the size of each angle?
°
16.
Two angles are on a straight line. One is 109°. What is the other?
°
17.
Angles of 58°, 67° and 87° could all meet at a point with nothing left over.
True False
18.
Three angles of a quadrilateral are 62°, 93° and 52°. Work out the fourth angle.
°
19.
8 equal angles meet at a point. What is the size of each angle?
°
20.
Two angles are on a straight line. One is 141°. What is the other?
°

Answer key

Angles and constructions — A sum of 360°

1.221 °
2.120 °
3.210 °
4.A. 360°
5.False
6.147 °
7.174 °
8.294 °
9.False
10.165 °
11.72 °
12.219 °
13.False
14.102 °
15.60 °
16.71 °
17.False
18.153 °
19.45 °
20.39 °