Which set of lenghths could be the side lengths of a right triangle?
A-20cm,22cm,29cm
B-10ft,12ft,15ft
C-7km,24km,28km
D-13in,84in,85in

Question

Which set of lenghths could be the side lengths of a right triangle?
A-20cm,22cm,29cm
B-10ft,12ft,15ft
C-7km,24km,28km
D-13in,84in,85in

phebe · Answer

@mjoxprm360

mrnood · Answer

You now KNOW the formula

find the longest side - the hypotenuse c
square all three sides a^2, b^2, c^2

if a squared plus b squared is EQUAL to c squared then it IS a right angled triangle

If they are NOT equal then it is NOT a right angled triangle

campbell_st · Answer

well you well need to test pythagoras' theorem

phebe · Answer

so wats the answer for it

mrnood · Answer

Please try it yourself - Pythagoras triangles are key to many other aspects of geometry which you will need for future work...

paki · Answer

use phytagoras theorem...

mrnood · Answer

If anyone posts the answer I will report it

mrnood · Answer

@Phebe The method is clear above - just try it
Post your work if you feel like trying

paki · Answer

agree with MrNood point...