Triangle Inequalities
State if the three numbers can be the measures of the sides of a triangle.
11,12,9
yes
What are verticle angles?
what is the name of a triangle with all congruent sides?
Equilateral
Which Angles add to 180 degrees?
(1,2), (1,4), (2,3), (4,3)
(5,6), (5,8), (6,7), (8,7)
What is the triangle sum theorem?
the sum of the three interior angles of any triangle is always 180 degrees.
State if the three numbers can be the measures of the sides of a triangle.
6,3,2
no
What are complementary angles?
What is the Name of a triangle that has two of the same sides and one angle that is 90 degrees?
Right Issocles
If <1 = 110 what is <2=?
70
What is <C?
A= 89 B=39 C=?
61
Two sides of a triangle have the following measures. Find the range of possible measures for the third side.
5,8
3<x<13
What are supplementary angles?
two angles whose sum is 180°
True or False: can a triangle be an equilateral obtuse triangle?
False
If <6=98 what does <2=?
98
Solve for x
<A=7x-10 <B=3x <C=90
X=30