Perimeters
Areas
Volumes
Math Reasoning
Quickly Calculations
100

Mention one unit of measure for the perimeter of a figure.

-meters (and all multiples and submutiples)

-inches

-feet

-yards

-miles

100

Mention one unit of measure (no abbreviations) for the area of a figure:

Square meters, square centimeters, square inches, square miles, square kilometers, square feet...

100
Mention one unit of measure (no abbreviations) for the volume of a figure:

cubic centimeters, cubic meters, cubic feet, cubic inches, cubic miles, cubic kilometers...

100

The base of a rectangle measures 20 cm. If I want to double its area, what should I do with the base?

Double its length: 40 cm
100

A square has a perimeter of 22 cm. What is the length of each side?

-5.5 cm

-5.5 centimeters

200
What is the universal constant that is the result of dividing the circumference by the diameter of any circle?

-π

-Pi

-3.141592...

200

What is the formula to calculate the area of a circle?

A= πr2

200

What is the formula to calculate the volume of a rectangular box (or rectangular prism)?

V=l w h

V=length × width × heigth

200
True or false: The height of a right triangle can be one of the legs.

True.

200

An isosceles triangle has a perimeter of 50 cm. What is the length of each of the equal sides if the third side measures 12 cm?

19 cm.

300
What is another name for the perimeter of a circle?

Circumference

300

What is the formula for the area of a trapezoid?

A=(B+b) h/2

300

What is the formula to calculate the volume of any prism?

V=Ab h

V=Area of base × height

300

The sides of a square are reduced by half (50%). What is the reduction of the area in percentage?

The area of the square is reduced by a 75%.

300

A rectangular box has a length of 5 cm and a width of 4 cm. What is the height of the box if it has a volume of 300 cm3? 

15 cm

400

What is the formula to calculate the perimeter of a rectangle?

P=2b+2h

400

What is the unit of measure that yo use to measure the area of a classroom?

Square meters

400

What is the formula for the volume of a semisphere?

V=2/3 π r3

400

What is the formula to calculate the perimeter of a semicircle?

P=πr+2r

P=πr + d

400

What is the area of one face of a cube that has a volume of 27 m3?

9 m2

500

What is the formula to calculate the perimeter of a circle?

P=2 π r

P=π d

500

Explain why the formula to calculate the area of a triangle has a division by 2.

Because a triangle is half a parallelogram, and the area of a paralellogram is A=bh

500

How many times can you pour the content of a pyramid into a prism that has the same base and heigth?

3
500

The sides of a sube are reduced by half (50%). What is the reduction of the area in percentage?

87.5%

500

What is the radius of a sphere if it has a volume of 1000 cm3? (Three decimals)

r=6.203 cm

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