Question

Will mark brainliest. only answer if you know it. random answers will be reported.

Answer 1

Answer:

b = 17.55

Step-by-step explanation:

a^2 + b^2 = c^2

4^2 + b^2 = 18^2

16 + b^2 = 324

-16              -16

b^2 = 308

square root them

b = 17.55

let me know if it is correct!

Answer 2

Step-by-step explanation:

4^2 + h^2 = 18^2

16 +h^2 = 324

h^2 = 308

h = √308

h = 17.5499 ft