Ratio & Proportions
Pythagorean Th.
Similar Polygons
Area & Circumference
100
If 3/x = 7/14, solve for x.
Hint to make this easy:
Rewrite these fractions as numerator directly over the denominator
x=6
100
A __________ __________ is a set of three positive INTEGERS, a, b, and c that satisfy the equation a2 + b2 = c2.
Pythagorean Triple
100
Similar means an exact copy.
True or False
False
SIMILAR means same shape, but different size.
CONGRUENT means a copy - same shape & size
100
ESTIMATE the area. (Use 3 for pi.)
A = pi x r x r
A = 3 x 3 x 3 = 27
200
When two (or more) numbers are compared by division, or made into a fraction.
Ratio
200
The longest side of a right triangle and always opposite of the right triangle.
Hypotenuse
200
If 2 triangles are similar, then each of their corresponding parts is proportional.
True or False
True
SIMILAR means same shape, but different size.
CONGRUENT means a copy - same shape & size
200
ESTIMATE the circumference. (Use 3 for pi.)
Circumference = pi x r x 2
= 3 x 3 x 2 = 18
300
An equation stating that two ratios are equal is a ...
Proportion
300
Find the unknown side length.
x = 10
Famous Pythagorean triple is 3, 4, 5
Twice that is 6, 8, 10
300
What is X?
X = 20
4 x 4 = 16, so
4 x 5 = 20
300
Find the area.
Area = bh / 2
or 12 x 10 = 120
400
9
6 x 3 = 18, so
27 / 3 = 9
400
Find the length of x.
x = 50
142 + 482 = x2
400
What is X?
24
400
Find the area. A =(b1 + b2) / 2 x h 
Area = 56
10+18 = 28
28/2 = 14
14 x 4 = 56
500
14
3 x 7 = 21
2 x 7 = 14
500
x = 3.6
500
Both are squares.The ratio of their sides is 2 to 3.
What is the area of the larger square?
36
Sides of smaller square = 4 
, so sides of larger are 6
A = s2 = 62 = 36
500
Find the area.
A = bh
= 15 x 6 = 90