Math Review (9)

Circles

100

Draw a circle with a diameter of 2 cm and solve its circumference. Use 3.14 for Pi.

6.28 cm

200

Solve the area of a circle with a diameter of 5 cm. Round to the tenths place.

19.63 cm²

300

Random number:

I have picked a number between 1 and 10. What is that number?

4

400

Random Fact:

What country plays the sport of Cheese Rolling?

The United Kingdom 

500

A circular oil spill has a radius of 2 miles. After a day, the radius of the oil spill increases by 3 miles. By how many square miles does the are of the  oil spill increase?

65.94 square miles

Vocabulary

100

What is area?

The space inside a figure

200

Random Word:

How many sides does a tetracontakaidigon have?

hint: the answer to life, universe, and everything

42 sides

300

What is circumference?

a circle's perimiter

400

What is a circle?

a shape with no sides that goes on for ever (or something like that)

500

Define hyaline.

adjective

glassy or transparent

Equations

100

What is the equation for solving circumference?

c= Pi*d

200

What is the eqaution for the area of a circle?

A = Pi*r²

300

Random Fact:

Consider this sniper of code, in c++. Find the syntax error, and fix it.

if (digitalRead(11) == LOW {

   digitalWrite(12, HIGH);

}

the error is simple. the writer forgot to close the parentheses

in the "if" line. the corrected code is as follows:

if (digitalRead(11) == LOW) {

   digitalWrite(12, HIGH);

}

400

Determine whether it is possible to obtain the cross section from a cube.

A. a circle

B. a square

C. a non-rectangular parallelogram

A. Impossible

B. Possible

C. Possible

500

Random Equation:

Solve for x.
x={2*[3/4*(6²*2)³]}

559872 = x.

?

100

Random Fact:

What country's flag was designed by a 17-year-old for a school project?

The USA

200

Find the absolute value of -1

1

300

Write the word sentence as an inequality.

a number p is greater than 5.

p > 5

400

two prisms have the same volume. Do they always, sometimes, or never have the same surface area?

sometimes

500

Bank Account A has $750.92, and bank Account B has $675.44. Account A changes by -$216.38, and Account B changes by -$168.49. Which account has the greater balance?

Account A has $534.54, while Account B has $506.95. So, Bank Account A has the larger balance.