Question

Find the length of the unknown side. Round your answer to the nearest tenth. Image of a right triangle with a leg of 4, hypotenuse of 18, and second leg unknown.

Answer 1

b^(2)=17.5

Step-by-step explanation:use the equation a^(2)+b^(2)=c^(2) to find unknow side

4^(2)+b^(2 )=26^(2)

16+b^(2)=324

16-16 +b^(2)=324-16

b^(2)=308

\sqrt(6^(2))=\sqrt(308)

b^(2)=17.549928774784

b^(2)=17.5 rounded to the nearesth tenth therefore

b^(2)=17.5

Answer 2

a^2+b^2=c^2
a^2+4^2=18^2
a^2=18^2-4^2
a^2=308
a=17.54992877
a=17.5