Lines in a plane that never meet.
Parallel lines
In triangle XYZ, angle X=72 degrees, angle Y=74 degrees. What is the measure of angle Z?
angle Z= 34 degrees
Has 3 congruent sides and 3 congruent angles
equilateral triangle
If one leg a=4 and the hypotenuse c=11, find the value of the missing leg.
10.2
Give the distance formula
d= x2 - x1 + y2 - y1
Angles that lie on opposite sides of the transversal, outside of the parallel and their measures are equal.
Alternate exterior angles
What are the measures of the angles of a right triangle if two of the angles are congruent.
90, 45, 45
Has 2 congruent sides and 2 congruent angles
Isosceles Triangle
If the legs of a right triangle are a=4.4 and b=6.7, what is the length of the hypotenuse?
8
Find the distance between A and B. Round to the nearest tenth if necessary. A=(1,5) B=(3,1)
4.5
True or false: Vertical angles are supplementary.
False, vertical angles have the same measure.
What does the Triangle Sum Theorem say?
The angle measures of a triangle add to 180
Has no congruent sides and no congruent angles
Scalene triangle
Can the numbers 8, 15, and 17 be sides of a right triangle?
Yes
The --------------- of a segment is the point that divides the segment into two congruent segments.
midpoint
<1= 32° and <2= 58°. Are angles 1 and 2 supplementary, complementary, or neither.
complementary
Let x represent the measure of angle A. angle A=x, angle B=4x, angle C=5x Find the value of x and the measure of each angle.
x=18 angle A=18 angle B=72 angle C=90
Can a triangle have sides 9cm, 4cm, 11cm
yes
How deep is the water? (see picture)
13.7 ft
A ferry sets sail from an island located at (6,2) on a map. It's destination is Ferry Landing B at (4,12). How far will the ferry travel is each unit on the grid is 0.5 miles?
5.1 miles
Perpendicular lines
Find the angle measures in the scalene triangle.
3p + 4p + p
x=22.5 67.5, 90, 22.5
Can an acute isosceles triangle have two angles that measure 40 degrees?
No
Find the slant of a cone if the height is 12 ft and the radius is 9 ft.
15
Denver has a longitude of 105°W and latitude 40°N. Pueblo has longitude 104°W and latitude 38°N. If each degree is about 51 miles, find the distance between Denver and Pueblo.
114 miles