Grades 6, 7 and 8 | Math | Middle School

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Math: Middle School: Grades 6, 7 and 8 Quiz - Position 1 (Questions)

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One way we can mark positions is on a grid. We do this by using coordinates which are placed on an X axis and a Y axis. These coordinates will usually be written like this: (3,4) (3,6) (5,6) (5,4). Those particular ones would mark out a square. The first number represents a line on the X axis and the second number a line on the Y axis. Where the two lines meet is a particular point on the grid.

What is the name given to an angle that is less than 90^o?

[ ]	Acute
[ ]	Obtuse
[ ]	Right angle
[ ]	Scalene

What is the name given to an angle that is more than 90^o and less than 180^o?

[ ]	Acute
[ ]	Obtuse
[ ]	Right angle
[ ]	Scalene

Which of these angles is obtuse?

[ ]	90^o
[ ]	75^o
[ ]	150^o
[ ]	200^o

On a grid, in which direction is the X axis?

[ ]	Horizontal
[ ]	Vertical
[ ]	Diagonal
[ ]	Curved

What is the name of the vertical axis?

[ ]	B
[ ]	X
[ ]	Y
[ ]	Z

Which coordinates are the first on a grid?

[ ]	1,1
[ ]	0,0
[ ]	0,1
[ ]	1,0

How would you find the coordinates 2,3?

[ ]	Start at 0,0 move 2 to the right and 3 up
[ ]	Start at 0,0 move 3 to the right and 2 up
[ ]	Start at 0,0 move 2 up and 3 to the right
[ ]	Start at 0,0 move 3 up and 2 to the right

How many degrees is a straight line?

[ ]	360^o
[ ]	90^o
[ ]	45^o
[ ]	180^o

On a straight line, there is an angle of 72^o. What is the other angle?

[ ]	108^o
[ ]	208^o
[ ]	288^o
[ ]	98^o

10.

Two angles make a straight line. One is 25^o; what is the other?

[ ]	65^o
[ ]	335^o
[ ]	255^o
[ ]	155^o

Math: Middle School: Grades 6, 7 and 8 Quiz - Position 1 (Answers)

What is the name given to an angle that is less than 90^o?

[x]	Acute
[ ]	Obtuse
[ ]	Right angle
[ ]	Scalene

An acute angle can be thought of as the point of a sharp pencil

What is the name given to an angle that is more than 90^o and less than 180^o?

[ ]	Acute
[x]	Obtuse
[ ]	Right angle
[ ]	Scalene

An obtuse angle can be thought of as the point of a blunt pencil

Which of these angles is obtuse?

[ ]	90^o
[ ]	75^o
[x]	150^o
[ ]	200^o

200^o is not obtuse as it is more than 180^o

On a grid, in which direction is the X axis?

[x]	Horizontal
[ ]	Vertical
[ ]	Diagonal
[ ]	Curved

One way to remember this is the sound 'X' makes - it sounds a little bit like aCroSS and horizontal lines travel across the page

What is the name of the vertical axis?

[ ]	B
[ ]	X
[x]	Y
[ ]	Z

One way to remember this is that a 'Y' looks similar to a 'V' for Vertical

Which coordinates are the first on a grid?

[ ]	1,1
[x]	0,0
[ ]	0,1
[ ]	1,0

0,0 is the place where the X axis and the Y axis cross one another

How would you find the coordinates 2,3?

[x]	Start at 0,0 move 2 to the right and 3 up
[ ]	Start at 0,0 move 3 to the right and 2 up
[ ]	Start at 0,0 move 2 up and 3 to the right
[ ]	Start at 0,0 move 3 up and 2 to the right

The first coordinate is always along the X axis

How many degrees is a straight line?

[ ]	360^o
[ ]	90^o
[ ]	45^o
[x]	180^o

A circle is 360^o and a straight line is half a circle. 180^o is half of 360^o

On a straight line, there is an angle of 72^o. What is the other angle?

[x]	108^o
[ ]	208^o
[ ]	288^o
[ ]	98^o

180^o - 72^o = 108^o

10.

Two angles make a straight line. One is 25^o; what is the other?

[ ]	65^o
[ ]	335^o
[ ]	255^o
[x]	155^o

180^o - 25^o = 155^o