The Circle of Life
Another name for the perimeter of a circle
What is a circumference?
The direction of an inequality symbol changes any time this type of coefficient is multiplied or divided.
What is a negative coefficient?
After reading the problem a couple of times, the first step in solving any word problem is to
What is, annotate the problem?
-11 + 1/2
What is -10.5
D x Pi
What is Circumference?
This circle part goes from the center of the circle to the edge?
What is the radius?
If x < -6.7 A possible solution to x is
What is anything less than -6.7
-10
-13
When solving a circle problem, this should always be drawn.
What is a model?
1/4 divided by 2
What is 1/8
L x W
What is the area of a square?
A new park was designed to contain a circular garden. The gardener wished to plant flowers to cover the entire garden. How many square meters of flowers does the gardener need?
To solve this problem, you would need to calculate this.
What is the area of a circle?
The longest continuous run was 213 miles long. If Nate has already run for 198 miles how many more miles does he need to run in order to beat the record?
The inequality that represents this situation is
What is m + 198 > 213?
The last step in solving any word problem
What is make sure you've answered the question asked?
A circle is drawn inside of a square with an area of 100, the area of the circle is
What is 25 x Pi or 78.5?
r2 x Pi
What is the area of a circle?
The steps in solving a problem involving circles
What is, Annotate, Draw a model, What is the problem asking, What information do they give you, write an equation to solve, substitute what is known into the equation, solve?
Which of the following does NOT represent an inequality and why not?
a. x + 3 - 5 + 6 < 15
b. x + 3 - 5 + 6 = 15
c. x + 3 - 5 + 6 <15
What is b does not represent an inequality because an inequality will have more than one solution, b has only 1?
If you were given the diameter, these would be the steps you would take find the area of the circle.
What is divide the diameter by 2 to get the radius and then apply the area formula A = r2 x Pi substituting your answer for R?
The answer to this inequality
-11 > -0.5 - 3/4x
What is 14 < x
L + W + L + W
What is the perimeter of a square or rectangle?
The bottom of Mrs. Davis' tea cup left a ring of condensation on the table when she picked it up. The ring measured 9 x Pi cm around. What is the measure of the radius of the bottom of her cup.
What is 4.5?
Does this equation 1/2 (1,500x) = 2,000 represent the following situation?
Hansel and Gretel are saving up food so they can make an escape from the evil witch. Hansel saved up 1,500 grams of food, Gretel has saved x grams, someone stole 1/2 of their stash and they still have 2,000 grams of food left
What is, it does not?
The steps to solving the following problem (words only)
-9 + 4x - 3 + 6(x - 2) = 24
What is distribute, combine like terms, isolate the variable using the inverse?
Write an equation to represent the following:
The perimeter of a certain pentagon is 10.5 centimeters. Four sides of this pentagon have the same length in centimeters, h, and the other side has a length of 1.7 centimeters.
What is 10.5 = 1.7 + 4h?
2 x r x Pi
What is Circumference