Question

what is the measure of side cb if ba is 17 and ca is 15

Answer 1

having the picture posted would help

Answer 2

sorry its a right triangle

Answer 3

use the a^2+b^2=c^2

Answer 4

which side is missing one of the legs or the hypotenues?

Answer 5

side cb

Answer 6

is cb the longest side? (opposite the right angle? or one of the other sides?

Answer 7

is side cb the longest side?

Answer 8

ba which is 17 is the hypotenuse

Answer 9

ok so then subtract 17^2 from 15^2

Answer 10

and ca which is 15 is the bottom

Answer 11

x^2 +15^ = 17^2

Answer 12

got picture?

Answer 13

yes that's it ^^

Answer 14

\(\bf c^2={\color{blue}{ a}}^2+b^2\implies c^2-b^2={\color{blue}{ a}}^2\implies \sqrt{c^2-b^2}={\color{blue}{ a}}\\
\qquad \uparrow \\
\textit{pythagorean theorem}\)