The 30 60 90 Triangle

1
The 30º 60º 90º Triangle
18 (2) cm
60º
18cm
30º
18

• Short Leg
• Hypotenuse
• Medium Leg

multiply
divide
2
2
2
The 45º - 45º - 90º Triangle
Leg Leg Hypotenuse
45º
divide
14 cm
multiply
14 cm
3
Using the Pythagorean Thm

• If this is true then it is a RIGHT triangle
• If c2 is larger, then it is an OBTUSE triangle
• If c2 is smaller, then it is an ACUTE triangle