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This triangle used in the game of pool is an equilateral triangle.

# Level 3-4 Shapes - Angles

Let's dive into the world of shapes - a big deal in KS3 Maths! One exciting feature? Angles! This quiz is all about testing if you've got the inside scoop on your angles.

Angles are like the cool way shapes turn or rotate, measured in degrees shown by this sign: o. A full rotation has 360o, while a half-turn or straight line has 180o. Shapes have set amounts of degrees too:

1.
An angle that is between 180o and 360o is a(n) .......
acute angle
obtuse angle
reflex angle
right angle
Every internal angle has a corresponding reflex angle. Together they add up to 360o
2.
Angles on a straight line add up to what?
90o
180o
270o
360o
A straight line is half a circle
3.
Two interior angles in a triangle are 35o and 55o. What is the 3rd angle?
75o
85o
90o
95o
Take 35 and 55 from 180 to find the answer
4.
The three interior angles in a triangle add up to what?
90o
180o
270o
360o
An equilateral triangle has 3 interior angles each measuring 60 degrees each (3 x 60 = 180)
5.
Each internal angle of a regular pentagon is 108o. What is the total number of internal degrees?
180o
360o
540o
720o
Pentagons have 5 internal angles so just multiply 108o x 5
6.
An angle that is between 0o and 90o is a(n) .......
acute angle
obtuse angle
reflex angle
right angle
Think of obtuse angles as 'blunt' and acute angles as 'sharp'
7.
An angle that is 90o is a(n) .......
acute angle
obtuse angle
reflex angle
right angle
These are found in squares and other rectangles
8.
An angle that is between 90o and 180o is a(n) .......
acute angle
obtuse angle
reflex angle
right angle
Think of obtuse angles as 'blunt' and acute angles as 'sharp'
9.
The internal angles of a regular hexagon add up to 720o. How many degrees is each one?
60o
90o
120o
150o
There are six internal angles in a hexagon. A regular hexagon has six equal angles
10.
A circle is divided into a number of parts or degrees. How many are there?
90o
180o
270o
360o
The four interior angles of a quadrilateral also add up to 360o