Question

Which set of lengths cannot form a right triangle?
a. 12 mm, 16 mm, 20 mm
c. 7 mm, 8 mm, 10 mm
B. 6 mm, 8 mm, 10 mm
d. 3 mm, 4 mm, 5 mm

Answer 1

the second row

Answer 2

c. 7 mm, 8 mm, 10 mm

Answer 3

72 +8^2 does not equal 10^2 , pythagorus doesnt hold

Answer 4

a,b,c

Answer 5

For each one, check that a^2 + b^2 = c^2. If it does, it can be a right triangle. If not, it can't.

There are two that can and two that can't be right triangles above.

Answer 6

^ there is only row that is isnt pythagorean triad, and thats the second row ( which for some strange reason is labelled c )

Answer 7

Yes, sorry, you're right. Math fail when checking a :)