This is a ray contained in plane M.

What is ray
vec{FG}, vec{IG}, or vec{IF}?
The measure of angle B if angle A has measure
60^@.

What is
30^@?
The statement "All squares are rectangles", rewritten in if/then form.
What is: "If a shape is a square, then it is a rectangle"?

These symbols show that the two horizontal lines are parallel.
What are the matching arrows?
This is the perimeter of the rectangle with corners P(2,5), Q(2,1), R(7,1), and S(7,5).
What is 18?
These three points define plane M.

What are I, F, and G?
This angle is complementary to angle C.

What is angle D?
This is the converse of the statement: "If two lines intersect, then they are perpendicular"
What is: "If two lines are perpendicular, then they intersect"?

Angles f and h sum to this measurement.
What is
180 ^\circ?
The distance between points P(-2,4) and Q(10,-1)
What is 13?
These points are not in plane M.

What are E and H?
This angle is supplementary to the angle formed by /_A+/_B+/_C.

What is D.
The statement "If a triangle is not isosceles, then it is not obtuse" is the inverse of this statement.
What is "If a triangle is isosceles, then it is obtuse"?

This relationship tells you that
m\angle a=m\angle d.
What are vertical angles?
This is the midpoint of the line segment between A(7,-2) and B(6,8).
What is (6.5,3)?
The line segment bar{HE} intersects the plane M at this point.

What is I?
If m/_C=2x+5 and x=10 , then this is the measure of angle D.

What is
65^@?
This states that if two parallel lines are cut by a transversal, then the consecutive pairs of angles are supplementary.
What is the Consecutive Angles Theorem?

Angle g is congruent to angle b because they have this relationship.
What are opposite exterior angles?
The lines
y=3x-3
and
y=3x-7
have this relationship.
What are parallel lines?
This ray is opposite to ray vec{FJ}.

What is ray
vec{FG}?
True or false, /_B \cong /_C.

False, there is no clear indication of how angles A and B relate to angles B and C.
The converse of the inverse of a conditional statement is called this.
What is the contrapositive?

Given that
m\angle c = 6x+20^\circ
and
m\angle e = 4x+10^\circ
then this is the value of x.
What is
15^\circ?
Any line perpendicular to the line
y=1/2x-4
must have this slope.
What is -2 ?