Question

Two sides of right triangl are 6 and 8, what is a posssible value of the 3rd side?
Choices are
15
11
5 rad 3
2 rad 7
2 rad 3

Note need explanation please

Answer 1

8^2 = 6^2 + x^2
x= sqrt(64-36)
= sqrt(28)
= 2 sqrt(7)

Answer 2

use pythagorean theorem just how hoblos explained

Answer 3

3,4,5 is a Pythagorean triple

Answer 4

and so is 6,8,10

Answer 5

you are right ffm... but 10 is not one of the options

Answer 6

Great job Hobls - yeah we were on that path and my son said that you are a Genius. Thanks guys.

Answer 7

Hm yes, then we meed to assume 8 to be the hypotenuse.

Answer 8

Apparently, we don't need to be a genius to answer this question ;-)

Answer 9

lol... @FoolForMath is right

Answer 10

It immediately think 3,4,5 --> 6,8,10 but no 10!
so 8 is the hypotenuse (longest side) so sqrt(64-36) = 2sqrt(7)

Answer 11

|a - b|<c<|b-a|

Answer 12

i did that hero and there aree 4 answers that satisfy that - helping my son study for sat

Answer 13

You should have known to just use pythagorean theorem

Answer 14

right, makes sense now

Answer 15

I have a feeling your son will do great on the SAT

Answer 16

@JuanitaM

Answer 17

Thanks Hero - he enjoyed your answer. This is his first time taking it so I would think he would want to score in his range to be done. UGH.... I def do not misss those days.

Answer 18

I haven't taken the SAT yet