Question

Find the missing length. Round to the nearest tenth, if necessary.
a = 9, c = 17, b = ?

Answer 1

You know about the Pythagoras Theorem, right?

Answer 2

no

Answer 3

\[a^2 + b^2 = c^2\]

Answer 4

oh ya!

Answer 5

Fill in those blanks with the numbers you have.

Answer 6

\[9^2 + b^2 = 17^2\]

Answer 7

ok

Answer 8

What does your equation look like now?

Answer 9

\[81 + b = 289\] is what it should look like.

Answer 10

ok mine does

Answer 11

Now simply 289 - 81 = \[289 - 81 = \sqrt{b}\]

Answer 12

well it doesn't equal the square root of b... but you are supposed to find the square root of b after you solve for 289 - 81

Answer 13

Did you get your answer yet?

Answer 14

The answer to 289 - 81 is 208

Answer 15

now find the square root of 208 and that will equal the length of side B.

Answer 16

14.4?

Answer 17

:)

Answer 18

Thanks!

Answer 19

No problem, Geometry is a pain, but once you get used to it... it gets easier.

Answer 20

Ya i hope so!