Shape

Question 1

What is a chord?

Answer 1

the line that goes from edge to edge in a circle (Not through the middle)

Question 2

What is a arc?

Answer 2

A curved line

Question 3

What is a tangent?

Answer 3

A line that touches the outside of the circle in one place.

Question 4

What do you call the line that goes from edge to edge in a circle? (Not through the middle)

Answer 4

Chord

Question 5

What is a polygon?

Answer 5

A shape made out of straight edges (no curves)

Question 6

What do you call polygon with four sides?

Answer 6

Quadrilateral

Question 7

What is a regular polygon?

Answer 7

One where all the sides are the same length and all the angles are the same size

Question 8

What is perimeter?
How do you work it out?
What are the units?

Answer 8

It is the distance around the shape
You add up the lengths of all of the sides. It’s useful to mark a corner to start at and don forget to work out any sides that aren’t given.
Units… mm, cm, m, km, Inches, feet, yard, miles

Question 9

How do you fined the area of a random shape?

Answer 9

Count the squares ( put half or part squares together)

Question 10

How do you work out the area of a rectangle?

Answer 10

Length X width

Question 11

How do you work out the area of a square ?

Answer 11

Length X length

Question 12

How do you fined the area of a complicated shape?

Answer 12

Split it into shapes that you know and add their areas together
Or work out the area for a bigger shape then take bits away

Question 13

How do you work out the area of a triangle?

Answer 13

Base X height then divide by 2

The base doesn’t have to be at the bottom
The height is at right angle to the base

Question 14

How coyly work out the area of a parallelogram?

Answer 14

base X height

The height must be at right angle to the base
You don’t half

Question 15

How do you work out the area of a square?

Answer 15

Length X length

Question 16

How do you work out the area of a rectangle?

Answer 16

Length X width

Question 17

How do you work out the area of a triangle?

Answer 17

Base X (perpendicular) height  divide by 2 
Do not use the sloping side

Question 18

How do you work out the area of a parallelogram?

Answer 18

Base X (perpendicular) height
Don’t half it
Don’t use the sloping side

Question 19

How do you work out the area of a trapezium?

Answer 19

The sum of the parallel sides X the height divided by 2

You get the formular in the exam

Question 20

How do you work out the area of a circle?

Answer 20

Radius X radius X pi (3.14…)

Question 21

What dose perpendicular mean?

Answer 21

Lines that meet or cross and right angles

Question 22

How do you work out the area of a complicated shape?

Answer 22

Split into shapes that you do know and work out the area for each one then add the answers together

Question 23

How do you work out the surface area of a object?

Answer 23

Individually work out the area of each face of the shape and then add the answers together
Units are square units (not cubed units)
It helps to name the faces eg a cuboid has a front and back, top and bottom, side and side

Question 24

How do you work out the circumference of a circle?

Answer 24

Diameter X 3.14 (pi)

Question 25

How do you work out the volume of a prism?

Answer 25

You work out the area of the end then times it by how long it is

Question 26

How do you work out the circumference of a circle?

Answer 26

Diameter X 3.14 (pi)

Question 27

How do you work out the volume of a prism?

Answer 27

You work out the area of the end then times it by how long it is