Tanesha needs to measure the height of a flagpole. She is 5'9" tall. She finds that if she stands 12 ft from the base of a flagpole, the top of her head touches the guy wire holding the flagpole up. The guy wire is anchored 15 ft from the base of the pole. How tall is the pole?

2 answers

As always, draw a diagram.

She is standing 3 ft from where the wire is attached to the ground. Using similar triangles (in inches), the height h can be found by

69/36 = h/180
ok i’m in grade 10 and have this assigned for homework and i just want people to know I WILL NEVER EVER NEED TO KNOW THIS IN REAL DAILY LIFE. IF SHE WANTS TO KNOW THE STUPID HEIGHT OF THE FLAGPOLE THEN MESSURE IT LIKE A NORMAL HUMAN BEING THIS IS STUPID