# Math

posted by .

How was it determined that a circle is 360 degrees and all angles of a triangle equal 180 degrees?

## Similar Questions

1. ### MATH

In a triangle ABC, angle A is 2 times angles C and angle B is 20 degrees less than angle C find the number of degrees in these angles In a triangle ABC, angle A is 2 times angles C and angle B is 20 degrees less than angle C find the …
2. ### ALGEBRA 1

If x and 3x-10 represent the measure of the acute angles of a right tringle find the value of x. THANKS Let's take it step by step. A triangle has 3 angles in it. Those three angles, when added together, is 180. In a right triangle, …
3. ### Math (triangles)

Given b=48, A=36 degrees find the remaining parts of the right triangle. B= a)144 degrees b)154 degrees c)54 degrees d)64 degrees We know that one angle equals 36 and since it is a right triangle another must equal 90. The sum of the …
4. ### basic geometric

a would like to get someone too help me with these math problem. Two angles of a triangle are 40 degrees and 62 degrees; what is the third angle's measur?
5. ### math

how to define arc cosine(cosine x) for -360 deg<x< 360 deg?
6. ### Math- HELP

There is a triangle inside of a circle. I have to find area of the shaded region which is the circle. So i would have to substract the area of the triangle from the area of the circle. the radius of the circle is 3 inches. I found …
7. ### Calculus

Determine the measure of A if 0 degrees is less or equal to angle A and if angle A is less or equal to 360 degrees. Tan A = 0 Answer is somehow supposed to be 0 degrees, 180 degrees, and 360 degrees, but don't know how to get the answer, …
8. ### Math

One angle of an isosceles triangle is 28°. What are the other 2 angles?
9. ### Math

1. Hannah drew a pattern using only equilateral triangles. Which of the following statements about the angles is an equilateral triangle is true?
10. ### math

Plz explain to me how to do this : The angles of an equilateral triangle are congruent. If x represents the measure of one angle of an equilateral triangle which equation represents the sum of the angle measures of the triangle A. …

More Similar Questions