# Right triangle Calculator

## Calculates the other elements of a right triangle from the selected elements. | ||

- Purpose of use
- To calculate the viewing angle for mounting a large screen TV above my fireplace. I used the distance (in inches ) from my sitting position to the wall and the distance (in inches) above eye-level to the proposed center of the TV screen. Moving the TV up or down a little changed the viewing angle from around 11% (acceptable) to almost 20% (too high),

[1] 2019/09/11 04:07 Female / 60 years old level or over / A retired person / Very /

- Purpose of use
- Calculate pi with the Archimedes polygon method (100,000,000-sided inscribed polygon)

Used: hypotenuse and angle

hypotenuse = 1

Angle = 180/ 100,000,000 = .0000018

(Solve for height h)

height h = 3.1415926535898E-8

height h * 100,000,000 = 3.1415926535898

[2] 2019/09/08 04:41 Male / 60 years old level or over / A retired person / Very /

- Purpose of use
- To jog the memory lane and check if all my calculations are correct without having a calculator at hand.
- Comment/Request
- Thank you!

[3] 2019/09/04 14:43 Male / Under 20 years old / High-school/ University/ Grad student / Very /

- Purpose of use
- Good
- Comment/Request
- Thank you

[4] 2019/09/01 00:38 Male / 20 years old level / An engineer / Very /

- Purpose of use
- Calculate distance to Sun, given a flat plane... 4,000 miles approx.
- Comment/Request
- Calculate distance to Sun, given a flat plane... 4,000 miles approx.

[5] 2019/08/29 08:46 Male / 40 years old level / High-school/ University/ Grad student / Very /

- Purpose of use
- Used to figure out the correct angle at which to cut the corner off a counter-top, so that it would match up with two different sections of countertop that had different widths.

[6] 2019/08/29 01:29 Male / 30 years old level / - / Very /

- Purpose of use
- Stringer
- Comment/Request
- Since I'm cutting stair stringers it could've helpful to put the hypothoesese measurements into tape measure fractions so mine was 29.702693... I believe that should be about 29 11/16 5/8 or 3/4 would serve for my purpose but I know a lot of guys who would go throu hell converting 29.7. If you really wanted to go above the mark a riser/landing calculator would help

[7] 2019/08/27 23:44 Male / 40 years old level / Self-employed people / Very /

- Purpose of use
- length of runner on stair case

[8] 2019/08/22 08:31 Male / 40 years old level / Others / Very /

- Purpose of use
- To find the best angle to shape my blade for best sharpness

[9] 2019/08/17 22:09 Male / Under 20 years old / Elementary school/ Junior high-school student / Useful /

- Purpose of use
- Calculating angle of a sloped ceiling to select a ceiling light that can be angled enough to illuminate art hanging on the wall.
- Comment/Request
- Thank you.

[10] 2019/08/16 23:50 Male / 60 years old level or over / Others / Very /

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