High School Geometry Review

Angles

100

Two perpendicular lines intersect and create

this type of angle.

A right angle

200

Name for 2 angles that have a sum of 90 degrees ?

complementary angles

300

IF 2 parallel lines are cut by a transversal, 

then the consecutive interior angles are ____?__

supplementary

400

Angles 1 and 2 are vertical angles.

If angle 1 = 48^o then what is the measure of angle 2?

48^o

500

Angles A and B are supplementary.  Angle A = 4x - 2 and B = 5x + 11.  Find the value of x.

x = 19

Definitions, Theorems, Postulates

100

Name the property ?  

   PQ = PQ

Reflexive property

200

If a = b, then b = a...... is an example of what property?

Symmetric property

300

Name the property:

If 3x - 2 = 18, then 3x = 20

Addition property of equality

400

__　　　　 __　　 __

If Q is the midpoint of PQ, then PQ ≅ QR

Definition of Midpoint

500

Name the property:

If 2(x + 3) = 24, then 2x + 6 = 24.   ?

Distributive property

Lines & segments

100

What is the least amount of points needed to create one line?

2 points

200

If Q is between A and M and MQ = 7.3 and AQ = 8.5, then AM = ___?

15.8

300

What do you call 2 lines that don't intersect AND are not in the same plane???

skew lines

400

Line a has a slope of 1/2.  If line a is parallel to line b, then what is the slope of line b?

1/2

500

Lines a and b are perpendicular.

If line a has a slope of 2/3, then line b has what slope?

-3/2

Triangles

100

A triangle with no equal sides is called   ?

scalene

200

An equiangular triangle has each angle that

measures   ?  

60^o

300

In a triangle ABC, angle A = 56^o, angle B =78^o, then

what is the measure of angle C ??

46^o

400

If triangle ABC has all congruent sides to triangle JKL,

then we say that ABC is congruent to JKL by what theorem ?

SSS

500

An Isosceles triangle has one of the base angles that 

equals 55^o.  What is the measure of the vertex angle in the triangle?

70^o

Polygons & Parallelograms

100

The name for a six sixed polygon

Hexagon

200

What is the sum of the interior angles of

a convex  octagon?

1080^o

300

A regular polygon has 20 sides.What is the measure of each EXTERIOR angle?

18^o

400

In a rectangle ABCD,  one diagonal AC = 3x -15.

The other diagonal BD = 2x + 4.  Find the value of x.

Since AC = BD, then x = 19

500

In a trapezoid, the bases are 12 and 28 inches in length.  How long is the median of the trapezoid?

20 inches