Question

(a)Two wires were secured to the top of a pole.
What is the length of the pole? Show all of your work. Round to the nearest tenth of a foot.
(b)How long was the wire? Show all of your work. Round to the nearest tenth of a foot.

Answer 1

@welshfella

Answer 2

can i help?

Answer 3

i think that maybe i can

Answer 4

Sure! :)

Answer 5

i think i might be able to solve this and explain, but im not sure and i dont want to give u the wrong answer. would u like me to tag some one else who knows for sure? @pinkbubbles

Answer 6

or @welshfella can help too

Answer 7

to find length of the pole x use the Pythagoras theorem
29^2 = x^2 + 21^2

Answer 8

i thought that but wasnt sure @welshfella

Answer 9

yes that's the way
x^2 = 29^2 - 21^2
x = sqrt (29^2 - 21^2)

Answer 10

having found the value of x you use pythagoras again on the other triangle

Answer 11

20 ft for x?

Answer 12

y = √(20^2 + 30^2) = 10√13 ≈ 36.1 ft

Answer 13

Thank You! @welshfella :)

Answer 14

yw