1. LESSON 3:
KINDS OF TRIANGLES
ACCORDING TO ANGLES
By:
Maricris Yumang
And
Rossly Anne Sumague

2. KINDS OF TRIANGLES
ACCORDING TO ANGLES
 There are 3 kinds of
triangles according to
angles. These are:
 RightTriangle,
 Acute Triangle, and
 Obtuse Triangle.

3. KINDS OF TRIANGLES
ACCORDING TO ANGLES
 A Right triangle has one 90˚.

4. KINDS OF TRIANGLES
ACCORDING TO ANGLES
 An Acute triangle has an angle which is
less than 90˚.

5. KINDS OF TRIANGLES
ACCORDING TO ANGLES
 An Obtuse triangle has an angle which is
more than 90˚ but less than 180˚.

6. KINDS OF TRIANGLES
ACCORDING TO ANGLES
 REFERENCES:
 The Modern Teacher
Vol. LVI, No. 4
September 2007
Hiyas Press, Inc.
 google.com (for the images)