Ask your own question, for FREE!
Mathematics 24 Online
OpenStudy (swaugh):

What is the length of Line segment B C https://ave.brainhoney.com/Resource/32487839,0/Assets/flvs/Assessments/res0011/09_04c_54_005.jpg

OpenStudy (anonymous):

Ok this one is more tricky that the ab one, you know Pythagoras theorem right?

OpenStudy (swaugh):

i know it its just really confusing to me

OpenStudy (anonymous):

Ok

OpenStudy (anonymous):

Basically that line isn't just purely up or down it's diagonal, that means that it has both an x and y component.

OpenStudy (anonymous):

You can think of the line itself as a hypotenuse and the x and y components as different sides of a right angle triangle, ill draw a picture.

OpenStudy (anonymous):

|dw:1442021866088:dw|

OpenStudy (anonymous):

Therefore the length of the line H is: x^2 + y^2 = H^2

OpenStudy (anonymous):

You try solve it from there ok

OpenStudy (swaugh):

is it 6

OpenStudy (anonymous):

Close but not right, can you show me your working?

OpenStudy (swaugh):

is it 4. when you count the boxes that the line is in you get 4

OpenStudy (anonymous):

The x component is 3, the y component 4. You have to square both of those and then take the sqrt of the answer you get.

OpenStudy (anonymous):

Square both of those then add together then sqrt*

OpenStudy (swaugh):

its 6. 3^2 + 4^2 =25; 25/4 =6.25

OpenStudy (anonymous):

You did everything right until the last part. Yes you get H^2 = 25 but H = sqrt 25 = 5

OpenStudy (swaugh):

ohh thank you

OpenStudy (anonymous):

Np, im glad to help ;)

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!