+0

0
1382
5
+2448

Apr 26, 2018

#1
+5265
+2

For this, we'll be using the trig. function tangent.

Tangent is the opposite over the adjacent (TOA)

x=15*tan(70) = x=18.329

The antenna is 18' to the nearest foot. (Rounding 18.3 to the nearest foot brings us to 18)

EDIT: My answer is incorrect, at least if it's in degrees (which it is).

Definitely shows the importance of changing the mode!

Apr 26, 2018
edited by rarinstraw1195  Apr 26, 2018
#2
+2448
+2

That's right well the way you set it up but 70 and 70 degrees are different. With 70 degrees it would equal 2.74747742*15=41.21216129=41 ft.

RainbowPanda  Apr 26, 2018
#3
+129209
+2

We have

tan (70 ° )  = height  / base ength

tan (70°)  = height  / 15   multiply both sides by 15

15 * tan (70°)  = height  ≈ 41 ft

I think Rarinstraw just forgot to  change the "mode" button on the calculator  from rads to degrees.....a mistake easily made  !!!

Apr 26, 2018
#4
+2448
0

Ah okay thank you

RainbowPanda  Apr 26, 2018
#5
+5265
0

Whoops! Might have! Thank you for the correction!

rarinstraw1195  Apr 26, 2018