Unofficialllyy
  • Unofficialllyy
Can someone check my 5 geometry questions? :) Will fan and medal!
Mathematics
katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
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Unofficialllyy
  • Unofficialllyy
1. Find the length of the base of the following pyramid, given the height of the pyramid is 211 meters and the angle of elevation of the base of the pyramid is 62°. Round to the nearest whole number.
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anonymous
  • anonymous
1/2bh
Unofficialllyy
  • Unofficialllyy
But the base isn't given.

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Unofficialllyy
  • Unofficialllyy
I'm pretty sure I have to use either sine, cosine, or tangent.
anonymous
  • anonymous
do you know the formula of volume of a pyramid
anonymous
  • anonymous
oh ok
anonymous
  • anonymous
we have to find the adjacent
anonymous
  • anonymous
we know the opposite
anonymous
  • anonymous
so
anonymous
  • anonymous
|dw:1433696245983:dw|
Unofficialllyy
  • Unofficialllyy
I dont get it
Unofficialllyy
  • Unofficialllyy
I keep getting 112.19
anonymous
  • anonymous
do you know the width
anonymous
  • anonymous
base width
anonymous
  • anonymous
and the volume
Unofficialllyy
  • Unofficialllyy
No
anonymous
  • anonymous
then find that first
Unofficialllyy
  • Unofficialllyy
How?
anonymous
  • anonymous
the base width you found was half of it
anonymous
  • anonymous
112.2*2
anonymous
  • anonymous
244.4 is the base width
anonymous
  • anonymous
look at the picture and see
Unofficialllyy
  • Unofficialllyy
I'm really confused lol
Unofficialllyy
  • Unofficialllyy
Wait I think I got it. I got 224 feet
Unofficialllyy
  • Unofficialllyy
I did the other 4 myself, could you check them though?
anonymous
  • anonymous
sure
Unofficialllyy
  • Unofficialllyy
A bird (B) is spotted flying 6,000 feet from a tower (T)). An observer (O) spots the top of the tower (T) at a distance of 9,000 feet. What is the angle of depression from the bird (B) to the observer (O)? I got 56.31 degrees
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Unofficialllyy
  • Unofficialllyy
An observer (O) spots a plane flying at a 35° angle to his horizontal line of sight. If the plane is flying at an altitude of 17,000 ft., what is the distance (x) from the plane (P) to the observer (O)? I got 29,639 feet
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Unofficialllyy
  • Unofficialllyy
An observer (O) spots a bird flying at a 42° angle from a line drawn horizontal to its nest. If the distance from the observer (O) to the bird (B) is 17,000 ft., how far is the bird (B) from its nest (N)? Round to the nearest whole number. I got 12,633 feet
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Unofficialllyy
  • Unofficialllyy
An observer (O) spots a plane (P) taking off from a local airport and flying at a 29° angle horizontal to her line of sight and located directly above a tower (T). The observer also notices a bird (B) circling directly above her. If the distance from the plane (P) to the tower (T) is 6,000 ft., how far is the bird (B) from the plane (P)? Round to the nearest whole number. I got: 10,824 feet.
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Unofficialllyy
  • Unofficialllyy
Thank you in advance for checking my work :)
Unofficialllyy
  • Unofficialllyy
Well I just submitted and I got a 100 lol

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