emmagrace232 emmagrace232
  • 06-01-2017
  • Mathematics
contestada

What is the length of the altitude of the equilateral triangle below

What is the length of the altitude of the equilateral triangle below class=

Respuesta :

olemakpadu
olemakpadu olemakpadu
  • 06-01-2017
Using Sine.

Sine = Opposite / Hypotenuse

sin 60° = a / (6√3)                        But sin60° = √3/2

√3/2 = a/(6√3)

Cross multiply

2*a = 6√3 * √3

2a = 6 * √(3*3)

2a = 6*3

a = 6*3/2

a = 3*3 = 9

Option E.

Hope this helps.
Answer Link

Otras preguntas

Ultraviolet radiation _____. is part of the visible spectrum are sound waves above the sonic range has a shorter wavelength than heat energy is often used to vi
Esteban is making turtle brownies the recipe calls for 3/4 bag or caramel squares one bag has 24 caramel squares how many caramel squares should he use for one
Is a Zebra SwallowTail Butterfly a herbivore , carnivore , omnivore
three fifths of the cast in a musical have to sing.what fraction of the cast does not have to sing
What is the common denominator of 3/8, 3/9, 3/10.
Expand y squared (y cubed - 2)
the border of a susan b. anthony dollar is in the shape of a regular polygon. how many sides does the polygon have what is the measure of each angle of the bord
Which does not explain how Renaissance ideas spread beyond Italy? A.When Italian art patrons fell on hard times, they sold most of their precious artwork to pay
Which digits repeat in the decimal number 28.1543?
1.53 as a mixed number in simplest form