Pythagorus Theorem

Question 1

What is the basic equation of Pythagoras theorem?

Answer 1

a^2+b^2=c^2

Question 2

What are the three rules for Pythagoras theorem

Answer 2

Only works on right angles triangles
Hypotenuse =c. It is opposite the right angle.
a and b can be any line

Question 3

Find the length of AB
A3cmC
\----|
  \.    | 4cm
     \. |B

Answer 3

a^2+b^2=c^2
3^2+4^2=c^2
9+16=c^2
25=c^2
Square root of 25=c
5=c

AB=5cm

Question 4

What is the square root of 25? How would this apply in lengths?

Answer 4

5 and -5, however you can’t have a negative length

Question 5

Find the length of AB

          C
            |\
           |.   \13cm
12cm |.       \
          |\_\_\_\_\_\_\_\_\
        A.            B

Answer 5

a^2+b^2=c^2
12^2+b^2=13^2
144+b^2=169
|-144
b^2=25
| square root (because you want to get b on its own
b=5

AB= 5cm