2.1 The Pythagorean Theorem.notebook
September 12, 2014
2.1 The Pythagorean Theorem
September 12, 2014
The Pythagorean Theorem
2
2
2
a +b =c
"In a right angle triangle, the square of the
hypothenuse is equal to the sum of the squares of the
other two sides"
c
a
b
"c" is always the hypotenuse
The hypothenuse is the
longest side in the right angle
triangle
It is always opposite the right
angle
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2.1 The Pythagorean Theorem.notebook
Example:
September 12, 2014
What is the length of the
hypothenuse?
8 cm
6 cm
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2.1 The Pythagorean Theorem.notebook
September 12, 2014
Ex. 2 Find How High a Ladder Will Reach
Nancy is planning to wash the windows on her house. She rests a
3 m long ladder against the side of the house. The foot of the ladder
is 1 m from the house. How high up the house will the ladder reach?
Round your answer to the nearest hundredth of a metre.
Solution
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2.1 The Pythagorean Theorem.notebook
September 12, 2014
Ex. 3 Find the length of each hypotenuse. Round your answers to one decimal place. (p.49)
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2.1 The Pythagorean Theorem.notebook
September 12, 2014
Homework
pp. 50-51 # 2,3ac, 5, 7, 10, 11
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