Problem Solving Flashcards
What is the formula for circumfrence of a circle?
= 22/7 * diameter
What is a right triangle?
This is a triangle where one of the angles is a 90o angle.
In a triangle, across from which side do we find the widest angle?
We find this angle opposite the longest side.
Describe the graph we use for coordinate geometry?
On this item,
y = verticle
x = horizontal
(0,0) = Origin
numbered counter clockwise

53 = ?
= 125
How do we deal with multiplying large fractions?
We use cross multiplication for this.
What do we call it when we take two fractions that are being multiplied, and divide the numerator in one and the denominator of the other by the same common divisor?
We call this cross multiplication.
n root of x =

= x1/n

What is the decimal form of 1/4?
The decimal form of this fraction is 0.25.
What do we know if the sum of the digits of another number is divisible by one of these number, respectively?
This means that the number is divisible by 3 or 9, respectively.
What is the formula for rates of work done?
1/units of timea
+
1/units of timeb
=
1/units of timea+b
just make sure that 1 = the same job for both of them.
How do we find the y-intercept in coordinate geometry?
In coordinate geometry, we can find this by setting x to 0.
26
=?
= 64
What is the decimal form of 1/9?
The decimal form of this fraction is 0.1111….
Two inscribed angles (in a circle) holding the same or two equal chords/arcs are ____.

Two _____ in a circle holding the same or two equal chords/arcs are equal.

The ratio of the number a to the number b (b ≠ 0)
One form of notation for this is a:b or

What is the formula for the volume of a cylander?
= 22/7*r2*h
What is a quotient?
This is a whole integer that a number is divisible by, usually with a remainder.
x-r =
= 1/xr
What is the formula to find the sum of all interior angles in a shape?
= [(sides)-2]*180
The probability that E does not occur is P(not E) = ____?
= l − P(E)
If a diagonal line is drawn intersecting two parallel lines, what will be true of the angles?

What is the formula for compound interest?
A=P(1+r/n)nt
What are the Pothagorean Triplets?
These are right triangles with “nice” integer side lengths, in set proportions:
3: 4:5
5: 12:13
7: 24:25














































