GHSGT MATH

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GHSGT MATH

• QUICK REVIEW

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PYTHAGOREANS THEOREM
Remember use only in a right triangle.

a² b² c²
C is always opposite of the right angle.
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Examples
Remember If you are looking for c, add.
If you are given c, subtract.
The last step is always take the square root.
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Angles
Complementary angles 2 angles that add up to 90
Supplementary angles 2 angles that add up to
180
m?3 m?4 180
m?1 m?2 90
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QUADRANTS
8
6
II
4
I
(-,)
(,)
2
-10
-5
5
10
IV
III
-2
(,-)
(-,-)
-4
-6
-8
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PARALLEL AND PERPENDICULAR LINES
Parallel lines never cross and they have the same
slope.
Perpendicular lines intersect to form right
angles and slopes are opposite reciprocals.
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TYPES OF ANGLES

• Acute angle measure is less than 90
• Right angle measure equals 90
• Obtuse angle measure is between 90 and 180
• Straight angle measure equals 180
• ( a straight angle is a line)

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TYPES OF TRIANGLES

• CLASSIFY BY SIDES
• Scalene no sides equal
• Isosceles two sides equal
• Equilateral all sides equal

• CLASSIFY BY ANGLES
• Acute three acute angles
• Right one right angle
• Obtuse one obtuse angle
• Equiangular all angles equal

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STATISTICS

• Mean average
• Median middle number
• (put numbers in order first)
• Mode number that occurs most often
• Range largest number smallest number

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PERCENT
A percent must be multiplied by a number. 25
of 60 means .25 (60) 15

IS OF 100
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• Perimeter distance around the outside
• ( add up all the sides)

• Area space the figure covers
• (formulas are given)

• Volume amount needed to fill a shape
• (formulas are given)

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Equations of Lines
Y mx b m slope b y-intercept Slope rise / run or Slope
Vertical lines Equation will look like x 3 Slope is undefined Horizontal lines Equation will look like y 5 Slope is 0
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TRANSFORMATIONS
Translation - slide
Reflection - flip
MATH
MATH
MATH
MATH
Rotation - turn
MATH
MATH
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ITS TEST TIME!!!
Do not rush through the test. Take your time
and think about each question. Make sure you
answer the question that is asked.
GOOD LUCK!