9.11 More About Triangles

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9.11 More About Triangles
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Review of Pythagorean Theorem In a right
triangle, the sum of the squares of the shorter
sides equals the hypotenuse squared.
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• A squared plus b squared equals c squared

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Common Pythagorean Triples

• A 5, B 12, C 13
• A 3, B 4, C 5
• And any multiple of the above, for example,
• A 6, B 8, C 10

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Why did the Cow Hate the Farmer?
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The farmer had no regard for the feeling of udders
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How are all triangles similar?
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They all have 3 sides and 3 anglesHow may
triangles differ?
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They may have sides and angles of different sizes.
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Types of Triangles
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Scalene None of the sides are the same length
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Isosceles 2 of the sides are the same length
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Equilateral All 3 sides are the same length
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Read pages 258-259HW 259, 260 all