Number of results: 23,003
I am studying for my GRE exam into grad school and it's been a very long time since I've done geometry. I have a problem to which I need to solve for the area of a triangle but I do not have the base. I do have all angles but I cannot remember how to convert angles into their ...
Monday, July 10, 2006 at 7:29pm by Kaytee
I just wanted to thank everyone that helped me on my geometry problem. I actually found the answer using the pythagorean theorem and knowing ratio rules that apply to triangles. Thanks again.
Thursday, July 13, 2006 at 4:10pm by Kaytee
Hello, I would appreciate it if... 1. If you could give me information on finding the area of a circle inscribed in an equilateral triangle. 2. This problem: A running track is shaped like a rectangle with a semicircle on each of the shorter sides. The distance around the ...
Tuesday, October 10, 2006 at 8:20pm by Lisa
Maybe you know this one..
Heyy, I posted this before but it kinda got pushed down and ignored, and I was hoping maybe DrBob might have an idea since no one else did! okay I have this question about chemistry and its driving me nuts. It feels like I am so close but am just missing something. The ...
Saturday, February 3, 2007 at 3:02pm by Tracy
please show me again in trig way
Saturday, May 17, 2008 at 12:40pm by Doni --i didnt get this one can please show me the trig way a little bit more clrealy
its in the first chapter of my trig course. i know its review frm geometry and alg
Friday, November 14, 2008 at 11:25am by y912f
physcs (Geometry bit)
how do you prove that an object on a ramp resolved into it's gravity components were the x dreiction is down the ramp and the y direction is the direciton of the normal force Force of gravity x component /\ |Normal force <_____| | /|OBJECT | /1| |2 / |Force of graviy | /Fg...
Monday, August 10, 2009 at 10:35am by physcs (Geometry bit)
Let L be the total string length. Use geometry/trig to determine the angle that the string makes with the horizontal, on both sides. That angle is A = cos^-1 (5L/16)/(L/2) = cos^-1(5/8) = 51.32 degrees Then apply a static force balance. Both strings have the same tension force...
Monday, April 5, 2010 at 10:09am by drwls
Hi Kate, I'm an engineer and computer programmer not a mathemetician so these proof things can be tedious and you can spend an awful lot of time going round in circles. I'm not sure why you need to prove that sin(pi/4) = sqrt(2)/2 and you are right, it's very obvious using ...
Thursday, July 22, 2010 at 3:15pm by Tom
For acute angle Aof a right triangle, find tan A by using the 45-45-90 Triangle Theorem or the 30-60-90 Triangle Theorem. measure of angle A=45 degrees.
Sunday, January 30, 2011 at 1:43pm by Chica
Let angle A be and acute angle in a right triangle. Approximate the measure of andgle A to the nearest tenth of a degree. cos A = 0.11
Sunday, January 30, 2011 at 1:53pm by Chica
angle A = 45 deg Special 45-45-90 deg triangles have sides in the ratio of 1:1:(sqrt(2)) OR ratio n : n : n(sqrt(2)) This means, in this problem, side a = 1 (opposite side) side b = 1 (adjacent side) side c = 1*(sqrt(2)) (hypotenuse) tan A = a/b = op/adj tan 45 = ?
Sunday, January 30, 2011 at 1:43pm by helper
Find the inverse of cosA, so cos-(.11)=83.7 I hope it's right!
Sunday, January 30, 2011 at 1:53pm by tghias
How do I find the geometric mean between 12 and 2.4?
Thursday, March 3, 2011 at 10:56pm by Shannon
The geometric mean of two numbers is the square root of their product or the mean of A and B is sqrt(AxB).
Thursday, March 3, 2011 at 10:56pm by tchrwill
A plane is flying due south at a speed of 300 mph. The wind is blowing from the west at a speed of 40 mph. Find the resultant speed of the plane and the direction of the plane
Monday, February 6, 2012 at 4:40pm by Lezah
V = 300 mi/h @ 270Deg + 40 mi/h @ 0Deg. X = 40 mi/h. Y = -300 mi/h. tanA = Y/X = -300 / 40 = -7.500. A = -82.4 Deg.,CW. A = -82.4 + 360 = 277.6 Deg, CCW. Vp = X/cosA = 40 / cos277.6 = 303 mi/h @ 277.6 Deg.
Monday, February 6, 2012 at 4:40pm by Henry
A ladder, 17 feet long, leans against a wall at a 49 degree angle to the ground. How far up the wall does the ladder reach?
Friday, March 9, 2012 at 5:38pm by Leana
What is 17*sin49?
Friday, March 9, 2012 at 5:38pm by bobpursley
Trigonometry/Geometry - Inequalities
Let a, b, and c be positive real numbers. Prove that sqrt(a^2 - ab + b^2) + sqrt(a^2 - ac + c^2) is greater or equal to sqrt(b^2 + bc + c^2). Under what conditions does equality occur? That is, for what values of a, b, and c are the two sides equal? This looks like a geometry...
Saturday, December 7, 2013 at 4:58pm by Sam