Question

******WILL FAN AND MEDAL!******
Which set of side lengths will form a right triangle?
5, 11, 13
9, 24, 25
7, 24, 25
8, 13, 17

Answer 1

has to be a^2+b^2=c^2

Answer 2

What do you mean by that?

Answer 3

plug in the biggest side for c, and smaller sides for a and b

Answer 4

triangle with sides a b and c is only a right triangle if:
a^2+b^2=c^2

Answer 5

So I put in the answer choices with power to the 2nd?

Answer 6

and add them up? @idku

Answer 7

@LynFran
@Falling_In_Katt

Answer 8

@aleeah1404
@Ddaddysgirl14
@math1234
@mathmate
@Rabakku
@rvc
@TillLindemann
@welshfella

Answer 9

I say a or b cause the bottom is the smallestr and the 2 sides are the same

Answer 10

Okay.

Answer 11

try the first one
the longest side = 13
13^2 = 169

12^2 = 144
5^2 = 25

what do you infer from these results?

Answer 12

What do you mean by infer?

Answer 13

what conclusion do you come to?
are these the 3 sides of a right angled triangle or not ?

Answer 14

d

Answer 15

Oh, I'm guessing it is.... I mean I kind of see what you did, and I can tell that the 3 lengths equaled to the right angle... I guess..

Answer 16

well 13^2 = 12^2 + 5^2
- which can only mean that the triangle is right angled
- according to the Pythagoras theorem

Answer 17

the square on the hypotenuse ( largest side) = sum of the squares on the other 2 sides
- is only true for right angled triangles

Answer 18

Okay.

Answer 19

in symbols that is
c^2 = a^2 + b^2 where c is the hypotenuse

Answer 20

Okay. Thank you!

Answer 21

yw

Answer 22

you might like to check out the other 3 - theres at least one which is a right angled triangle

Answer 23

Okay.