Geometry Midterm Review

Triangles

100

What is a triangle with one 90 degree angle called?

right triangle

200

What is a triangle with all three angles measuring less than 90 degrees?

acute triangle

300

What is a triangle that has NO congruent sides called?

scalene triangle

400

The measures of two angles of a triangle are 64^o and 58^o. What is the measure of the third angle of the triangle?

58^o

500

In triangle ABC, m<A = 47^o, m<B = 15 + x and m<C = 18 + 4x. Find the value of x.

x = 20

Angles & Angle Relationships

100

What is the point at which two rays meet to form an angle?

vertex

200

What is an angle that measures exactly 180^o called?

straight angle

300

Alternate Interior Angles are _______________.

congruent

400

Angle 1 is in a linear pair with Angle 2. If Angle 1 is 30^o, what is the measure of Angle 2?

150^o

500

Angle A is complementary with Angle B. m<A = x+3, m<B = 2x - 3. Find the measure of Angle A. 

33^o

Points, Lines, Planes...Oh My!

100

What geometry word can be used to describe a line with a single endpoint that extends forever in ONE direction?

ray

200

What geometry word best describes the surface of your desk?

plane

300

These non-coplanar lines NEVER intersect, but are also NOT parallel.

skew lines

400

Two lines can intersect at a point. Two planes can intersect at a _______________.

line

500

For segment AB, point C is anywhere between A and B. If AC = 23 and AB = 58, find BC.

35

Congruent vs. Similar Figures

100

If Figure CDEF is CONGRUENT to Figure HIJK, then <E is congruent to _______________.

<J

200

Triangle ABC is CONGRUENT to Triangle DEF. m<A = 45^o and m<F = 55^o. Find the measure of Angle B.

80^o

300

In two similar figures, corresponding angles are congruent, but corresponding sides are _______________.

proportional

400

If 10/x = 5/2, find the value of x.

x = 4

500

If Figure QRST is SIMILAR to Figure ABCD, 

DA/TQ = ?/SR

CB

Miscellaneous

100

How do you name a line?

Any two points on the line (or a single lowercase letter).

200

Points that lie on the same line are _______________.

collinear

300

Same-Side-Interior Angles are _______________.

supplementary

400

A RIGHT triangle has one leg that measures 6 units and another leg that measures 8 units. What is the length of the hypotenuse?

10 units

500

Find the distance between point A(-7, -7) and B(5, 9).

20