Measurement, NAPX-I3-NC30

Question

Ralph has a rectangular puppy playground in his backyard with an area of 10 m2^2.

He decides to make it bigger and increases each side to 3 times its current length.

What is the new area of the puppy playground?

Worked Solution

Area of original playground
= l×w\large l × w
= 10 m2^2

Area of new playground
= 3l×3w3\large l × 3w
= 9×l×w9 × \large l × w
= 9 × 10
= {{{correctAnswer}}}

Variant 0

DifficultyLevel

679

Question

Ralph has a rectangular puppy playground in his backyard with an area of 10 m2^2.

He decides to make it bigger and increases each side to 3 times its current length.

What is the new area of the puppy playground?

Worked Solution

Area of original playground
= l×w\large l × w
= 10 m2^2

Area of new playground
= 3l×3w3\large l × 3w
= 9×l×w9 × \large l × w
= 9 × 10
= 90 m2^2

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
correctAnswer
90 m$^2$

Answers

Is Correct?Answer
✓

90 m2^2

x

60 m2^2

x

40 m2^2

x

30 m2^2

Tags

  • staging_suejones