Yr 9 Term 3 Wk 8 Revision Quiz

Which scale factor describes a reduction?

• 2.5

• 1

• 3.5

• 0.5

Which of the following represents an enlargement?

• Scale factor of 0.75

• Scale factor of 1

• Scale factor of 1.5

• Scale factor of 0.5

What is the scale factor of a dilation that reduces a figure to one-third of its original size?

• 3

• 1/3

• 2/3

• 1/2

The dilation shown in the figure can be described as:

• an enlargement with a scale factor of 1/2.

• an enlargement with a scale factor of 2.

• a reduction with a scale factor of 1/2.

• a reduction with a scale factor of 2.

Are these rectangles similar figures?

(a)  

Which similarity condition would you use to check to see if these triangles are similar?

• RHS

• SAS

• SSS

• AAA

The pronumeral shown on the hypotenuse in this right-angled triangle is:

• r

• q

• p

• p²

What is the value of the angle b?

• 45

• 121

• 225

• 30

An escalator rises a vertical distance of 10 m for a horizontal distance of 15 m. What distance would you travel from the bottom to the top of the escalator?

• 325m

• 25m

• 18.03m

• 17m

Use Pythagoras’ Theorem to calculate the length of the unknown side in this triangle.

• 12cm

• 6cm

• 144cm

• 17.49cm