Find help: i have my maths block exam and i have a feeling theyre gunna want pythagorean triads.. - Help.com

30/60/90 = 3/4/5

45/45/90 = 1/1/radical 2

You’re on the internet. Google it.

yep, search on the internet! you can do it!! goodluck.

I agree with Cady.

Pythagorean theorem
Rule relating the lengths of the sides of a right triangle.

The sum of the squares of the lengths of the legs is equal to the square of the length of the hypotenuse (the side opposite the right angle). That is, a2 + b2 = c2, where c is the length of the hypotenuse. Triads of whole numbers that satisfy it (e.g., 3, 4, and 5) are called Pythagorean triples. (http://concise.britannica.com/ebc/article-9376211/Pythagorean-theorem)

Law of cosines
If a, b, and c are the lengths of the sides and C is the angle opposite side c, then c2 = a2 + b2 - 2ab cos C.

Law of Sines
Principle of trigonometry stating that the lengths of the sides of any triangle are proportional to the sines of the opposite angles. That is, when a, b, and c are the sides and A, B, and C are the opposite angles.

Also have a look at;

http://en.wikipedia.org/wiki/Pythagor…

Hope it helps. Good luck!