2D Shapes
A regular triangle is called a WHAT triangle?
An Equilateral Triangle
What is the name for the flat surfaces of a 3D shape?
Face
What is the name for the perimeter of a circle?
Circumference
What type of triangle can Pythagoras solve?
Right angled triangle
3500m
How many sides does a heptagon have?
Seven
A 2D shape has length and width. A 3D shape has length, width and....
Depth OR Height
What is the formula for the perimeter of any shape?
Perimeter = Sum of all sides.
a2 + b2 = ?
c2
If Jimmy works 12 hours per week and gets paid $13.50/hr, what is his weekly wage?
$162
Three REGULAR shapes tesselate (connect together without leaving any spaces): Squares, triangles and ?
Hexagons
Name a 3D shape that has no vertices or edges
A sphere
What is the perimeter of a square with a side length of 5.5cm?
22cm
If a right-angled triangle has two short sides labelled 4cm and 3cm, calculate the length of the hypotenuse.
c = 5cm
What is a 26% on $390?
$288.60
What do the interior angles of a triangle add up to?
180o
Polyhedron is the name for a 3D figure, what is the plural word for Polyhedron (more than one)?
Polyhedra
What is the perimeter of a regular 5-pointed star shape with side lengths of 9cm?
90 cm
If a right angled triangle has a side length 12m and another side length 5m, calculate the hypotenuse and hence, calculate the perimeter.
12 + 5 + 13 = 30m
If Alice earns $98,000, and she spends $14,700 per year on rent, determine what percentage of her total income Alice pays on rent.
15%
What is the size of one of the interior angles of a hexagon?
120o
Name a 3D shape with only one vertex
Cone
What is the perimeter of a semi-circle with a radius of 25mm? (round to nearest mm)
129mm
(Circumference of full circle = 157.08mm. Divide 2 = 78.54mm. Add 2r to close shape. Ans = 78.54 + 2x25 = 128.54mm = 129mm)
If c=10m and b= 6m, calculate a.
a= 8m
Jenny has a total income of $56,987. At tax time, she has deductions of $160 work expenses, $300 fuel and $80 donations. What is her taxable income?
Taxable income = $56,447