Number, NAPX-H3-CA31

Question

Jaco has a square billboard poster with an area of 9 m².

He enlarges the billboard poster to have an area of 81 m².

The enlargement multiplied the side lengths of the original billboard poster by a factor of

Worked Solution
Let  s\ \large s = side length of original poster
s\large s2^2 = 9
s\large s = 3 metres

Let  S\ S = side length of enlarged poster
S2S^2 = 81
SS = 9

∴\therefore Side lengths have increased from 3 to 9, or by a factor of {{{correctAnswer}}}

Variant 0

DifficultyLevel

719

Question

Jaco has a square billboard poster with an area of 9 m².

He enlarges the billboard poster to have an area of 81 m².

The enlargement multiplied the side lengths of the original billboard poster by a factor of

Worked Solution
Let  s\ \large s = side length of original poster
s\large s2^2 = 9
s\large s = 3 metres

Let  S\ S = side length of enlarged poster
S2S^2 = 81
SS = 9

∴\therefore Side lengths have increased from 3 to 9, or by a factor of three.

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
correctAnswer
three.

Answers

Is Correct?Answer
✓

three.

x

four.

x

six.

x

nine.

x

twelve.

Tags