Homework Help: Trigonometry

Posted by Anonymous on Monday, April 19, 2010 at 9:33pm.

Gabe is spending two weeks on an archaeological dig. He finds a fragment of a circular plate that his leader thinks may be valuable. The arc length of the fragment is about 1/6 the circumference of the original complete plate and measures 1.65 inches. A similar plate found earlier has a diameter of 3.14 inches.

Could Gabe's fragment match this plate?

How long would the arc length of a fragment be if it were 1/6 the circumference of the plate?

I have no idea how to start these.

Trigonometry - Damon, Monday, April 19, 2010 at 9:43pm
(1/6)(pi d) =1.65
d = 1.65 (6/pi) = 3.15
Trigonometry - Anonymous, Monday, April 19, 2010 at 10:03pm
Thanks - and then there's one more if you don't mind.
Toby finds another fragment of arc length 2.48 inches. What fraction of the outer edge of Gabe's plate would it be if this fragment were part of Gabe's plate?

1/4
1/2
2/3
3/4
Trigonometry - Damon, Monday, April 19, 2010 at 10:14pm
d = 3.14
pi d = 9.864
2.48 / 9.864 = .251
a quarter of it

Answer this Question

Related Questions

trigonometry - Gabe is spending two weeks on an archaeological dig. He finds a ...
Trigonometry - I am trying to help my child out with a problem but yeah I am ...
physics - A circular plate of uniform thickness has a diameter of 56cm.A ...
chemistry - 1. Which of these chemical formulasCl2, KCl, Ar, or NO2represents ...
Alg2 - A piece of wood discovered in an archaeological dig was found to have ...
math - Sum of a 3 digit # is 24. Ones digit is 2 more than 2xs the hundred dig. ...
Physics - Two parallel plate capacitors have circular plates. The magnitude of ...
physics - I have no clue: Two parallel plate capacitors have circular plates. ...
World History Honors - What exactly is this assignment asking me to do? lol i ...
physics - The magnitude of the electric field between two plates of a parallel ...

For Further Reading

First Name:
School Subject:
Answer: