2006-11-12 05:41:51 · 13 answers · asked by IAN R 1 in Science & Mathematics ➔ Mathematics
You basically have 2 options. Use a protractor and measure them (The internal angles total 180 degrees).
The other option is using the trig functions (Sin, cos and tan), however you must have some info on the triangle eg. length of sides to apply any of these.
2006-11-12 12:51:52 · answer #1 · answered by Anonymous · 0⤊ 0⤋
A triangle can not have 3 ninety diploma angles; it would not be a triangle yet extremely a rectangle. Why? All 3 angles of a triangle upload as much as a hundred and eighty levels, and ninety * 3 = 270 that is larger than a hundred and eighty. i admire dr bob's answer; even with the undeniable fact that in case you draw a triangle on a sphere that is going to not be referred to as a triangle; a triangle is a 2-d merchandise, and that could make it 3-D.
2016-11-23 17:33:08 · answer #2 · answered by Anonymous · 0⤊ 0⤋
If by degrees you mean the angles then the law of sines and cosines will calculate those angles. To know if yougot it right all 3 angle must add up to 180 degrees. Tight triangles are easier than other triangles. In either caese better brush up on trig.
2006-11-12 06:42:22 · answer #3 · answered by ikeman32 6 · 0⤊ 0⤋
All triangles (in the plane) have interior angles that add up to 180 degrees. Are you asking how to determine the degree of any one particular angle? If so, then you'd need to know the measures of the sides of the triangles, and then you can apply a trig function using the sides to determine the measure of the angle.
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2006-11-12 05:44:18 · answer #4 · answered by I ♥ AUG 6 · 0⤊ 0⤋
they all add up to 180 degrees (straight line) there are 3 main types of triangle. equilateral, isocolese and right angled.
equilateral is 3x60 =180
right angle is 90+45+45=180
and you can find out what an icosolese triangle is to impress your teacher
2006-11-12 05:47:15 · answer #5 · answered by Anonymous · 0⤊ 0⤋
I presume you mean the angles of the triangle.
If it is a right-angled triangle then Sin, Cos and Tan will do the trick (SOHCAHTOA).
If it is not a right-angled triangle then usually the sine or cosine rule are used.
2006-11-12 21:59:41 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Use Pythagoras. SOHCAHTOA is often used for solving the problem. S being Sin for Hypotenuse and opposite. C being Cosine for adjacent and Hypotenuse. And finally T being Tan for opposite and Adjacent.
2006-11-12 05:57:12 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Internal = 180 add up to
External=360 add up to
Off any strait line,total 180 add up to
2006-11-13 07:21:17 · answer #8 · answered by SCARFACE 2 · 0⤊ 0⤋
use a protractor
they will total 180 degrees
2006-11-12 05:44:07 · answer #9 · answered by tomkat1528 5 · 0⤊ 0⤋
you need to give us some details about the triangle
2006-11-12 06:44:33 · answer #10 · answered by Anonymous · 0⤊ 0⤋