Post Mock Recall

A polygon has 7 sides. Which of these names is correct?

• heptagon

• nonagon

• decagon

• pentagon

I flip 2 coins. What is the chance both come up heads?

• 2/2

• 2/4

• 1/4

• 1/2

• 2/3

• 36

• 64

• 72

• 84

Answer explanation

You don't have to stress about what prime factor form means. Just work out the expression in front of you.

Match the definition to the maths.

• Expression

• Identity

• area = base x height

• Inequality

• Formula

• Equation

Label the parts of the circle. There are 2 areas and 3 lines.

d

e

f

g

h

Segment

Chord

Radius

Angle

Tangent

Diameter

Sector

Centre

You must be 1.78 metres tall to ride this rollercoaster.

3 babies in a trenchcoat turn up.

Thad is 0.74m

Brad is 51cm

Chad is 550mm

Can they Ride the rollercoaster?

Answer explanation

Converting to cm, we need to add 74, 51 and 55.

74 + 51 + 55 = 1.80cm = 1.8m

The babies get to ride on the rollercoaster.

I am starving. I can either eat a 10 inch pizza, or two 7 inch pizzas.

Which should I go for?

• 10 inch pizza

• two 7 inch pizzas

Match the following sequences

• 1, 1, 2, 3, 5, 8, 13...

• Triangle

• 1, -2, 4, -8, 16, -32...

• Arithmetic

• 3, 5, 7, 9, 11, 13...

• Fibonacci

• 1, 4, 9, 16, 25, 36...

• Squares

• 1, 3, 6, 10, 15, 21...

• Geometric

Answer explanation

1) Use a Calculator.

2) Notice that:

7/5 = 2/5 + 1

4/3 = 1/3 + 1

11/8 = 3/8 + 1

So compare 1/3, 2/5 and 3/8, which are 0.333.., 0.4, 0.375.

Draw a Quadrilateral.