
Types of Triangles
Presentation
•
Mathematics
•
10th - 12th Grade
•
Practice Problem
•
Medium
+1
Standards-aligned
Paulo Leal
Used 342+ times
FREE Resource
10 Slides • 10 Questions
1
Types of Triangles
Classify a Triangle by its sides and angles
2
Equilateral Triangle
All 3 sides are equal in length.
All 3 angles measure the same.
3
Scalene Triangle
All 3 sides have different lengths.
All 3 angles have different measurements.
4
Scalene Acute Triangle
All 3 sides have different lengths.
All 3 angles have different measurements.
All 3 angles are less than 90o.
5
Scalene Right Triangle
All 3 sides have different lengths.
All 3 angles have different measurements.
One angle is 90o.
6
Scalene Obtuse Triangle
All 3 sides have different lengths.
All 3 angles have different measurements.
One angle is greater than 90o.
7
Multiple Choice
Classify the triangle.
Equilateral
Scalene Acute
Scalene Right
Scalene Obtuse
8
Multiple Choice
Classify the triangle.
Equilateral
Scalene Acute
Scalene Right
Scalene Obtuse
9
Multiple Choice
Classify the triangle.
Equilateral
Scalene Acute
Scalene Right
Scalene Obtuse
10
Isosceles Triangle
Two sides are of equal length.
The angles opposite to the equal sides are also equal.
11
Isosceles Acute Triangle
Two sides are equal.
Two angles are equal.
All angles are less than 90o.
12
Isosceles Right Triangle
Two sides are equal.
Two angles are equal.
One angle is 90o.
13
Isosceles Obtuse Triangle
Two sides are equal.
Two angles are equal.
One angle is greater than 90o.
14
Multiple Choice
Classify the triangle.
Equilateral
Isosceles Acute
Isosceles Right
Isosceles Obtuse
15
Multiple Choice
Classify the triangle.
Equilateral
Isosceles Acute
Isosceles Right
Isosceles Obtuse
16
Fill in the Blanks
What is the measurement of the 3rd side of this isosceles triangle?
Type answer...
17
Fill in the Blanks
What is the measurement of angle x for this isosceles triangle?
Type answer...
18
Fill in the Blanks
What is the measurement of AC if AB = 11?
Type answer...
19
Fill in the Blanks
What is the measurement of ED if EF = 16?
Type answer...
20
Multiple Choice
Triangle ABC is what type of triangle?
Equilateral
Scalene
Isosceles
Right Triangle
Types of Triangles
Classify a Triangle by its sides and angles
Show answer
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