Plane Figures
How many sides does a triangle have?
Three sides.
What is perimeter?
The distance around a figure.
How many degrees are in a right angle?
90 degrees.
What is the mean (average)?
Add all the numbers and divide by how many numbers there are.
What is a pictogram?
A picture graph that uses small drawings to show data.
Which figure has 4 equal sides and 4 right angles?
A square.
What is the perimeter of a square with 4 cm sides?
16 cm
What kind of angle is less than 90°?
An acute angle.
What is the mean of these numbers: 4, 6, 8?
6.
What is a frequency table?
A table that shows how many times each thing happens.
What is the name of a figure with 6 sides?
Hexagon.
A triangle has sides of 5 cm, 6 cm, and 7 cm. What is its perimeter?
18 cm
What tool do we use to measure angles?
A protractor
What is the mode?
The number that appears the most.
What does the horizontal line in a bar graph show?
The names or types of things (categories).
What is the difference between a rectangle and a rhombus?
A rectangle has right angles; a rhombus doesn’t always.
A rectangle is 10 cm long and 4 cm wide. What is its perimeter?
28 cm
Give an example of an obtuse angle.
120°
What is the median?
The middle number when the numbers are in order.
Which graph helps you compare numbers?
A bar graph.
Draw a closed figure with all sides different and straight.
An irregular polygon.
An irregular figure has sides of 3 cm, 4 cm, 6 cm, and 7 cm. What is its perimeter?
20 cm
If an angle measures 135°, what type is it?
It is an obtuse angle.
What is the median of these numbers: 3, 7, 2, 9, 4?,
The median is 4
Look at this table: Apples: 4 | Bananas: 6 | Oranges: 3. Which fruit is the most popular?
Bananas.