Question

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
Complete the following proof. (Note: Your teacher has additional instructions on how to complete this problem, if needed.)

Prove: In an equilateral triangle the three medians are equal.

Answer 1

For AD:
 AD=root((c-0)^2 + (d-0)^2)=root((c)^2 + (d)^2)
 For BC:
 BC=root(((b+c) - b)^2+(d-0)^2)=root((c)^2+(d)^2)
 For AB:
 AB=root((b-0)^2 + (0-0)^2)=root((b)^2 + (0)^2)=root((b)^2)
 For CD:
 CD=root((c-(b+c))^2 + (d-d)^2)
 CD=root((b)^2 + (0)^2)
 CD=root((b)^2)