Thursday

January 29, 2015

January 29, 2015

Posted by **Layka** on Thursday, December 27, 2012 at 11:28am.

1.Find the height of the pyramid, knowing that when a person is standing at the center of its side he measures the angle of elevation of the apex to be 51 degrees with an error of +/- 0.5 degrees.

2. Build the model of the Great Pyramid at Giza using calculations from #1.

3. Use differentials to estimate the allowable error in the elevation angle that will ensure an error in the height is at most +/- 5m.

- AP calculus -
**Steve**, Thursday, December 27, 2012 at 11:58am1. h = 115 tan51° = 142 m

with error, 139.51 <= h <= 144.57

2. sorry, you'll have to do that yourself!

3.

h = 115 tanθ

dh = 115 sec^2 θ dθ

5 = 115 * 2.525 dθ

dθ = .01722 = 0.986°

just as a check, our error of ±0.5° indicates a height error of

dh = 115*2.525*0.5*π/180 = ±2.53m which agrees quite nicely with the explicit values found above

**Answer this Question**

**Related Questions**

measurements - The great pyramid of Giza was built around 2560 BC. It was ...

math - The pyramid of Giza in Egypt is built of stone and was completed in 2560 ...

geometry - The Great Pyramid of Giza was built around the year 2560 BC. It was ...

Geometry - The Great Pyramid of Cheops in Giza, Egypt, was completed around 2566...

Mathematics - OPQRS is a right pyramid whose base is a square of sides 12cm each...

math - according to the smithsonian institute, many of the original stones were ...

Maths - OPQRS is a right pyramid whose base is a square of sides 12cm each. ...

Maths - OPQRS is a right pyramid whose base is a square of sides 12cm each. ...

Geometry - The Great Pyramid of Cheops is a right square pyramid with height of ...

math - The Great Pyramid of Cheops has a square base of 771 ft on a side and a ...