ariamontogomery4
ariamontogomery4 ariamontogomery4
  • 14-04-2021
  • Mathematics
contestada

a guidebook says this tower is 50m tall.Is that correct? given deegrees are 27° and 46°
​

a guidebook says this tower is 50m tallIs that correct given deegrees are 27 and 46 class=

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 14-04-2021

9514 1404 393

Answer:

   yes

Step-by-step explanation:

The tower is about 50.1 meters tall. The guidebook is correct.

__

The distance from the base of the tower to the angle vertex is ...

  d1 = h/tan(46°)

  d2 = d1 +50 = h/tan(27°)

Then the height of the tower is ...

  h/tan(46°) +50 = h/tan(27°)

  50 = h(cot(27°) - cot(46°))

  h = 50/(cot(27°) -cot(46°)) ≈ 50/(1.96261 -0.96569) ≈ 50/0.99692

  h ≈ 50.1544 . . . meters

The tower is more than 50 meters high.

Ver imagen sqdancefan
Answer Link

Otras preguntas

What is 16/2.5-3.2x0.043
name five sources of stress that are specific to teens.
John makes 2,678 selling pencils, Sandy makes 2,786and Josh makes 3,871,Who makes the most? Who makes the least?
what were the Spanish searching for in the New World
The radius of a circle is 3.5 inches. What is the area of the circle? Use pi = 3.14 3.5 sq.inches 21 sq.inches 35.45 sq.inches 38.47 sq.inches
4 students spent $12 on School lunch at this rate find the amount 10 students would spend on the same school lunch
De pequeña Adriana había ________________ en París. a. vivido b. vivida c. vividas
you have a restaurant bill of $73.25. if you are taxed 7 1/2% and decide to tip your server 15%, how much is your total?
How does cuba celebrate independence day ?
Which is a sentence fragment? A. The large moon above the trees. B. Melody and Zack are in the pool. C. Take the tray home with you. D. Weren't we