unit 2d day 2: special right t...unit 2d day 2 notes mt3.notebook february 18, 2014 unit 2d day 2:...
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unit 2d day 2 notes mt3.notebook February 18, 2014
Unit 2D day 2: Special Right Triangles
454590 Triangles
1
1
2
2
3
3
4
4
The length of the hypontenuse is always going to be :
Where h is the hypotenuse and l is the length of the legs.
unit 2d day 2 notes mt3.notebook February 18, 2014
Example
45 45
9
h
Find the length of the hypontenuse.
a.)
b.)
45 45h
Got it?
What is the length of the hypotenuse of a 454590 triangle with leg length ?
unit 2d day 2 notes mt3.notebook February 18, 2014
Example
What is the value of x?
45
45
x6
Got it?
The length of the hypotenuse of a 454590 triangle is 10. What is the length of one leg?
unit 2d day 2 notes mt3.notebook February 18, 2014
For all 306090 triangles,
306090 Triangles
30
60
Short Leg (s)
Long Leg (l)
hypotenuse (h)
Example
What are the values of h and l ?
30
60
2
l
h
unit 2d day 2 notes mt3.notebook February 18, 2014
Example
What are the values of s and h?
30
60
5
sh
For all 306090 triangles,
Example
What is the value of x?
45
7x
45
x 8
30x
12
30
x 6
x=9.9
x=3
x=5.7
x=10.4