Angles, averages and calendar Flashcards

1
Q

Complete the blanks in the following sentence: The mean is a type of average. To find the mean, [BLANK - two words] all the numbers and [BLANK - one word] by [BLANK - four words].

A

mean

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How many days are there in October?

A

31

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How many degrees are there in a half turn

A

180°

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How many days are there in March?

A

31

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How many days are there in December?

A

31

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What does it tell you about the number of degrees in an angle if you know that it’s a reflex angle

A

It has more than 180°

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How many days are there in November?

A

30

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How many degrees are there in a right angle

A

90°

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What number of degrees must the angles on a straight line add up to?

A

180°

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How many days are there in May?

A

31

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What does it tell you about the number of degrees in an angle if you know that it’s an obtuse angle

A

It has more than 90° and less than 180°

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

How many days are there in January?

A

31

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

How many weeks are there in a year?

A

52 [plus 1 day in a normal day or plus 2 days in a leap year]

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How many days are there in a year (if it isn’t a leap year)?

A

365

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How many days are there in April?

A

30

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How many days are there in February (except in a leap year)?

A

28

17
Q

How many days are there in June?

A

30

18
Q

What number of degrees must the angles inside a triangle add up to?

A

180°

19
Q

How many days are there in August?

A

31

20
Q

How many degrees are there in a full turn?

A

360°

21
Q

How many days are there in September?

A

30

22
Q

What does it tell you about the number of degrees in an angle if you know that it’s an acute angle?

A

It is less than 90°

23
Q

How many days are there in a leap year?

A

366

24
Q

How many days are there in February in a leap year?

A

29

25
Q

How many days are there in July?

A

31

26
Q

What number of degrees must the angles inside a quadrilateral add up to?

A

360°

27
Q

Which months have exactly 30 days?

A

April, June, September, November [i.e. the 4th and 6th months in the year and the 9th and 11th months in the year]

28
Q

Complete the blank in the following sentence: To find the [BLANK], add up all the numbers and divide by how many there are.

A

mean

29
Q

Which months have exactly 31 days?

A

January, March, May, July, August, October, December [i.e. the 1st, 3rd, 5th and 7th months in the year, and the 8th, 10th and 12th months in the year]