Amiko is riding her bike on a wet street. As the bike wheel spins, water droplets are sprayed off tangent to the wheel. Amiko’s bike wheels have a radius of 12 inches. Use the Pythagorean Theorem to find the distance the water droplets have been sprayed when they are 13 inches from the center of the wheel.
|dw:1400826285735:dw|
well you know the radius and tangent meet at right angles so you have a right triangle with hypotenuse 13 and shorter side 12 so you can say \[13^2 = 12^2 + b^2\] solve for b
yeah....what they said..
my options are: 5 sq root 2 inches 5inches 5 sq root 3 sq root 13 out of these which is my best option? thank you @campbelle_st @johnbc
@campbell_st
ok... so what is 13^2 - 12^2 = that helps find the answer...
25?
great so whats the square root of 25...?
5
yep... thats it... well done...
ohh okay I was thinking it was more complicated! cool thank you! :)
lol... glad to help
Join our real-time social learning platform and learn together with your friends!