Cashel Payne, Rosalba Urena 4/28/08
Math B
Bronx Prep
Different Types of Triangles
There are many different types of triangles. They all do not equal the same value or have the same form. However, all triangles have three sides. You can identify a type of triangle by its sides. An isosceles triangle has two sides that are same length and one side that is a different length. A scalene triangle has all three sides’ different lengths. Equilateral triangles all have the same length on all three sides. Obtuse triangles have angles that are more than 90 degrees. Acute triangles have an angle that is less than 90 degrees. A right triangle has an angle that is 90 degrees.
Math B
Bronx Prep
Different Types of Triangles
There are many different types of triangles. They all do not equal the same value or have the same form. However, all triangles have three sides. You can identify a type of triangle by its sides. An isosceles triangle has two sides that are same length and one side that is a different length. A scalene triangle has all three sides’ different lengths. Equilateral triangles all have the same length on all three sides. Obtuse triangles have angles that are more than 90 degrees. Acute triangles have an angle that is less than 90 degrees. A right triangle has an angle that is 90 degrees.
Examples: types of triangles
1) Right triangle
2) Equilateral triangle
3) Obtuse triangle
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4) Isosceles
1) Right triangle
2) Equilateral triangle
3) Obtuse triangle
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4) Isosceles
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Practice Problems:
Directions: Identify what type of triangle it is for the following.
1. Side 1 – 11 cm
Side 2 – 11 cm
Side 3 – 11 cm
2. Side 1 – 21 cm
Side 2 – 5 cm
Side 3 – 3 cm
3. Side 1 – 16 cm
Side 2 – 3 cm
Side 3 – 16 cm
4. CHECK YOUR EMAIL FOR TRIANGLES IMAGES
5. CHECK YOUR EMAIL FOR TRIANGLES IMAGES
6. CHECK YOUR EMAIL FOR TRIANGLES IMAGES
7. Side 1 – 130 cm
Side 2 – 20 cm
Side 3 – 30 cm
8. CHECK YOUR EMAIL FOR TRIANGLES IMAGES
In conclusion all triangles might not be the same length or size but they all have 3 sides. To be a triangle, one must have right angels, acute angles, or obtuse angles. Out of these angles, at least 2 angles are needed to make 1 triangle. Some angles are the same length and some aren’t, depending on what type of triangles you are defining.
Side 2 – 20 cm
Side 3 – 30 cm
8. CHECK YOUR EMAIL FOR TRIANGLES IMAGES
In conclusion all triangles might not be the same length or size but they all have 3 sides. To be a triangle, one must have right angels, acute angles, or obtuse angles. Out of these angles, at least 2 angles are needed to make 1 triangle. Some angles are the same length and some aren’t, depending on what type of triangles you are defining.
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