Brilliant

Today Courses

Practice

Algebra
Geometry
Number Theory
Calculus
Probability
Basic Mathematics
Logic
Classical Mechanics
Electricity and Magnetism
Computer Science
Quantitative Finance
Chemistry

Excel in math and science.

Join using Facebook Join using Google Join using email

Forgot password? New user? Sign up

Existing user? Log in

Your answer seems reasonable. Find out if you're right!

That seems reasonable. Find out if you're right!

Join using Facebook Join using Google Join using email

Forgot password? New user? Sign up

Existing user? Log in

Classical Mechanics

SI Units

Concept Quizzes

SI Multiplier Prefixes
SI Divisor Prefixes
SI Length
SI Fluid Measure

SI Length

The perimeter of a rectangular land is $47\text{ meters}.$ If the length of the land is $7\text{ meters},$ what is its width?

32.5\text{ m}

32.0\text{ m}

16.0\text{ m}

16.5\text{ m}

Show explanation

View wiki

by Brilliant Staff

The height of one floor in an apartment building consisting of $15$ floors is $298\text{ cm}.$ What is the total height of this apartment building in meters?

44700 m 4.47 m 447.00 m 44.70 m

Show explanation

View wiki

by Brilliant Staff

If the area of a square flowerbed is $64\text{ m}^2,$ then how long is the perimeter of the flowerbed in meters?

8\text{ m}

16\text{ m}

24\text{ m}

32\text{ m}

40\text{ m}

Show explanation

View wiki

by Brilliant Staff

A typical sugar cube has an edge length of $1$ cm. If you have a cubical box containing a mole of sugar cubes, what is its approximate edge length?

One mole $\approx 6.02 \times 10^{23}$ units.

4.24 \times 10^{2} \text{ km}

8.44 \times 10^{2} \text{ m}

4.24 \times 10^{2} \text{ m}

8.44 \times 10^{2} \text{ km}

Show explanation

View wiki

by Brilliant Staff

If the volume of a cube is $20 \text{ m}^3,$ what is the approximate length of each side in $\text{cm}?$

200\text{ cm}

400\text{ cm}

271\text{ cm}

542\text{ cm}

Show explanation

View wiki

by Brilliant Staff

Problem Loading...

Note Loading...

Set Loading...