# Study sets matching "gmat geometry"

Study sets

Diagrams

Classes

Users

Pythagorean theorem

Common pythagorean triangles

Side lengths for 30-60-90 triangle

Side lengths for right isosceles (45-45…

a²+b²=c² (with c as the hypotenuse of a right triangle)

3,4,5... 5,12,13... 8,15,17

1,2,√3

1,1,√2

Pythagorean theorem

a²+b²=c² (with c as the hypotenuse of a right triangle)

Common pythagorean triangles

3,4,5... 5,12,13... 8,15,17

sum of all angles in a triangle

isosceles triangle

What are the lengths of the sides in a…

in an isosceles triangle, and one angle…

the sum of all angles of a triangle always adds up to 180 degr…

A triangle that has 2 equal/congruent sides... AD=DC... angle ABD =…

x, x, x√2

60 - it's an equilateral triangle

sum of all angles in a triangle

the sum of all angles of a triangle always adds up to 180 degr…

isosceles triangle

A triangle that has 2 equal/congruent sides... AD=DC... angle ABD =…

If one of the sides of a triangle inscr…

Inscribed

Straight line

Perpendicular

then the triangle must be a right triangle

when a triangle lies inside a circle and points (vertices) of…

Shortest distance between two points. Measures 180 degrees.

intersect at a 90 degree angle

If one of the sides of a triangle inscr…

then the triangle must be a right triangle

Inscribed

when a triangle lies inside a circle and points (vertices) of…

Three principles of geometry problems

If one of the sides of a triangle inscr…

Inscribed

Straight line

1. If they don't tell you, don't assume... 2. If they give you a…

then the triangle must be a right triangle

when a triangle lies inside a circle and points (vertices) of…

Shortest distance between two points. Measures 180 degrees.

Three principles of geometry problems

1. If they don't tell you, don't assume... 2. If they give you a…

If one of the sides of a triangle inscr…

then the triangle must be a right triangle

Line

Ray

Line Segment

Angles

Passes through two points and goes on forever in both directio…

Starts at one point and goes on forever

Starts at one point and ends at another

Measured in degrees and formed by the intersection of 2 lines

Line

Passes through two points and goes on forever in both directio…

Ray

Starts at one point and goes on forever

vertical angels

perpendicular

parallel

polygon

2 lines intersect the opposite angles

two lines intersect at a right angel

two lines that are in the same plane but don't intersect

closed plane figure formed by 3 or more line segments ... each in…

vertical angels

2 lines intersect the opposite angles

perpendicular

two lines intersect at a right angel

m(angle sign) letter means:

A line that is parallel to another is w…

Vertex

regular polygon

Measure of angle letter

l1 || l2

A point where two or more straight lines meet.

a polygon with all sides and all angles equal

m(angle sign) letter means:

Measure of angle letter

A line that is parallel to another is w…

l1 || l2

Right triangle ratio sets (AKA Pythagor…

Isosceles triangle

Sides of a 45, 45, 90 right triangle (i…

Sides of a 30,60,90 right triangle

3:4:5, 5:12:13, 6:8:10, 7:24:25, 8:15:17, 9:40:41

Isosceles Triangle ... Two equal sides ... Two equal angles

x, x, x√2... Has a right angle ( (90°), and also two equal angles

x, x√3, 2x

Right triangle ratio sets (AKA Pythagor…

3:4:5, 5:12:13, 6:8:10, 7:24:25, 8:15:17, 9:40:41

Isosceles triangle

Isosceles Triangle ... Two equal sides ... Two equal angles

Line

Ray

Line Segment

Angles

Passes through two points and goes on forever in both directio…

Starts at one point and goes on forever

Starts at one point and ends at another

Measured in degrees and formed by the intersection of 2 lines

Line

Passes through two points and goes on forever in both directio…

Ray

Starts at one point and goes on forever

Diameter

3 Things to Remember

Pythagorean Theorem

Straight Line

Must be indicated but it is the length of one side of the circ…

1.) If they don't tell you, don't assume... 2.) If they give you…

A^2 + B^2= C^2

Shortest distance between 2 points. As an angle it is 180 degr…

Diameter

Must be indicated but it is the length of one side of the circ…

3 Things to Remember

1.) If they don't tell you, don't assume... 2.) If they give you…