Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

Pages: **1**

**AshJones555****Member**- Registered: 2006-05-15
- Posts: 19

I'm currently doing trigonometry at school and i understand simple stuff such as;

where right angle is at the bottom right of trangle and hypotenuse is facing left, y = base and 12

= opposite to hypotonuse (can't seem to upload a picture)

Tan47 = 12/y

y x Tan47 = 12

y = 12/Tan47

y = 11.19018103

y = 11.2 (rounded to 1d.p.)

(please tell me if you work it out otherwise)

I know it's quite vague but is there any way i could extend my trigonometry studies?

*Last edited by AshJones555 (2006-05-21 00:13:25)*

Offline

**George,Y****Member**- Registered: 2006-03-12
- Posts: 1,306

you can use imageshack and (img)http://.......jpg(/img) "(" and ")" should be "[" and "]" instead.

**X'(y-Xβ)=0**

Offline

**John E. Franklin****Member**- Registered: 2005-08-29
- Posts: 3,552

Yes, you are right!!

The vertical is 12

The horizontal is 12 / tan(47).

Good work.

Tangent is rise over run or slope or first derivative.

**igloo** **myrtilles** **fourmis**

Offline

**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,529

And images can also be uploaded when you click on "Post Reply" - look for the section "Image Upload"

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman

Offline

Pages: **1**