Question

If a and b are two sides of a right triangle, find the length of the hypotenuse, c.

a=8, b=4, c=?

Answer 1

so do you know the formula?

Answer 2

a^2 + B^2=c^2

Answer 3

heck no

Answer 4

oh

Answer 5

8^2+4^2=c^2 youll want to \[\sqrt{c}\]

Answer 6

do whaa

Answer 7

so just plug a and b in and then you take the square root of c

Answer 8

how
do you do that

Answer 9

so 80?

Answer 10

This is called the Pythagorean theorem
\[\huge~\rm~a^2+b^2=c^2\]

\[\huge~\rm~8^2+4^2=c^2\]
\[\huge~\rm~64+16=c\]

Answer 11

Once you find 64+16 just square root it

Answer 12

yes then you take the square root of that

Answer 13

i dont know how to square root haha that is why i need help

Answer 14

whats 64+16?

Answer 15

\[8^2+4^2=c^2\ or \sqrt{80}\]

Answer 16

right you might need to use a calc for that when you do
you get a decimal
\[\huge~\rm~8.944272 \]

Answer 17

From there just take the first 3 numbers

Answer 18

so about 8.94

Answer 19

or you could simplify 80.

Answer 20

so 9?

Answer 21

\(\color{#0cbb34}{\text{Originally Posted by}}\) @pooja195
so about 8.94
\(\color{#0cbb34}{\text{End of Quote}}\)
this

Answer 22

guys this is a multiple choice and the answers aern't numbers like that

Answer 23

\[\sqrt{16+5}=4\sqrt{5}\]

Answer 24

that is the answer

Answer 25

@kylefoster58 it would help if u put the answer choices

Answer 26

sorry haha

Answer 27

Here you use the Pythagorean theorem which is a^2 + b^2 = c^2
a and b are the legs of the triangle while c is the hypotenuse.
All you have to do is fill in the variables and solve for c.
Therefore, (8)^2 + (4)^2 = c^2
64 + 16 = 80
But because 80 is c^2, you have to square root it.
\[\sqrt{80}\] = \[4\sqrt{5}\] and that's your final answer.

Answer 28

^thats right

Answer 29

its D.

Answer 30

4 square root of 5 right

Answer 31

thank yall again!!