Tuesday

September 2, 2014

September 2, 2014

Posted by **physics and geometry** on Tuesday, August 11, 2009 at 1:39pm.

Gesh almost done lol :O

h t t p : / /w w w .a n g e l f i r e. c o m / s ta r s / d h s ph y s i c s / f r ic t i o n . j p g

ok

How to prove this? Similar triangles.

Notice the upper angle in that photo is a right angle (ramp to Fn),

yes and i agree right anlge

in which the angle of Fn to the vertical is an angle complement to Fp and the vertical.

ok so your saying that...

angle Fn Fw

is complement to angle

fp and fw

because triangle adds up to 180 degrees ok understand but I need to find a proof for right triangles that the sum of their angles add up to 180 if you could show me one that would be great...!!!

Well, the ramp angle is also a complement to that angle.

huh so angle of the ramp is complemtary to angle Fw Fp...

ok i can visually see that but how do we now these two angles are complementary?????????

Therefore, ramp angle = angle Fn to vertical.

I agree... now snese both angles are completary to this other angle then they must be equal

ok just need a proof of why the angles in right triangle add up to 180 i looked on the internet couldn't find one and why those two angles are complementary...

and that's it =]

- physics and geometry -
**bobpursley**, Tuesday, August 11, 2009 at 1:48pmtwo angles are complementary if they add to a right triangle (ninety degrees). Fn is normal(right angle) to the ramp.

**Answer this Question**

**Related Questions**

geometry - Write the converse of this statement. If two angles are both obtuse, ...

Geometry - How can I tell if a triangle is a 30, 60 90 triangle or a 45 45 90? ...

Geometry - Given: Segment CE bisects <BCD; <A is congruent to <B Prove...

Geometry proving quadrilaterals - Proving quadrilaterals PLEASE PLEASE PLEASE ...

math geometry ITT - so i know that when you have an isosceles triangle has 2 ...

geometry - Angles 1 and 7 are alternate exterior angles of a transversal cutting...

math214 - One student says “My sister’s high school geometry book talked about ...

geometry - Two angles of a quadrilateral measure 210° and 100°. The other two ...

vertex angle - The three angles add to 180 degrees. Also , the two base angles ...

Geometry - Which of the following statements from Euclidean geometry is also ...