Question

Which set of three numbers could represent the lengths of the sides of a right triangle?
A.7,24,25
B.8,9,10
C.9,11,14
D.15,18,21

Answer 1

@AloneS

Answer 2

i would say A but i am not sure i will check for you give me a sec.

Answer 3

given sides a,b,c such that a<c and b<c , what is the property that tells you if the triangle is right angled ??

Answer 4

@bannana43 please refrain from giving out direct answers - please explain and then let the person with the question answer - this just ensures they understand

Answer 5

sorry about that

Answer 6

is < less than?

Answer 7

yes

Answer 8

so a is lees than b which is less than c?

Answer 9

*less

Answer 10

No... a is less than c and b is less than c

Answer 11

so a can be bigger than b?

Answer 12

yes

Answer 13

ok but here in this case there all smaller

Answer 14

let me explain... here a=7, b=24, c=25...

the property i was referring to was for given a,b,c such that a<c and b<c, a triangle is called a right angled triangle if \[a^2 + b^2 = c^2\]

Answer 15

ok so i think its a... cause 7x7=49 and 24x24=576 and when you add them they equal 625 which is what 25x25 equals

Answer 16

@xavier123

Answer 17

am i right?

Answer 18

yes... this is called Pythagorean theorem and the values that satisfy this property are called Pythagorean triplets.

other examples could be (3,4,5) and (5,12,13)

Answer 19

i think so

Answer 20

thanks

Answer 21

np, i send you message