Triangles

1
Triangles
COURSE 2 LESSON 7-4
Find the value of x in the triangle.
x 78 56 180
x 134 180
x 134 134 180 134
x 46
7-4
2
Triangles
COURSE 2 LESSON 7-4
Classify each triangle by its sides and by its
angle measures. Then find the measure of the
missing angle. 1. 2.
18 in
6in
19
11 in
This figure is not a triangle Because 6 11 17
and 17 lt 18. The figure is not closed,
therefore is not a Polygon (aka. Triangle)
isosceles acute 30
7-4