Circles
What is the distance around a circle called?
The circumference
You flip a coin. What is the probability of getting heads?
1/2 or 50%
Convert 0.76 into a percentage.
76
Convert 650 m to km.
0.65 km
2 + 3 x 4
14
What is the segment that connects 2 points on a circle that passes through its centre (from one edge to the other) called?
The diameter
A spinner is divided into 8 equal sections. 3 sections are green, 2 are yellow, and 3 are blue.
What is the probability of landing on blue?
(in a fraction form)
3/8
What is 3/5 in percent?
60%
Convert 7 km to m.
7000 m
(4+3) x 4
28
What is the distance from the centre of a circle to the edge of the circle called?
The radius
You roll a standard die. What is the probability of rolling a number greater than 4?
2/6 or 1/3
In Lucy’s class, 16 of the 25 students have a phone. What percentage of the students does this represent?
64 %
Convert 125 cm to m.
1.25 m
7x2 + 5x3
29
What is the angle formed by 2 radii called?
The central angle
Box A has 2 red and 8 blue marbles.
Box B has 5 red and 5 blue marbles.
From which box are you more likely to pick a red marble?
Box B
Peter and Georgia answered 20 questions in a quiz about rocks. Peter got 16 answers right. Georgia answered 85% of the questions correctly. Who got more answers right?
Georgia
Convert 2300 m to km.
2.3 km
(2x12) ➗ (4+5)
11
What is the interior region defined by a circle called?
The disk
A spinner has 12 equal sections.
5 are red, 4 are blue, and 3 are green.
What is the probability of landing on a colour that is not green?
(In a percent form)
75%
Miles surveyed 50 people to find out their thoughts on playing soccer at recess. His results showed that 90% of the participants liked playing soccer. How many people does this percentage represent? What is the decimal of this percentage?
45 people
and
0.9
Convert 58.5 m to dm.
585 dm
4 + 2 x 4^2
36