# construct a triangle

posted by .

How can I construct a triangle ABC with vertices A(-4,2), B(4,3), C(1,-3). what are the angles in order from least measure to greatest measure

Since you will have to use trigonometry to find the angles, surely you must know how to plot points.

take the slope of each of the lines,
e.g. slope BC =(3-(-3))/(4-1) = 2

If ß is the angle BC makes with the x-axis, then tan ß = 2 and
ß=63.43º
In the same way you can find the angles that the other sides make with the x-axis, and from there you will be able to find the angles of the triangle.

## Similar Questions

1. ### Math(geometry)

I need to know how to find the meausure of a triangle using vertical angles, and also how to measure a triangle using linear pairs... Oh, I hope I'm not too late with an answer for you... To measure a triangle using linear pairs, you …
2. ### algebra.

problems about angles: Hi. I needed help on some problems for the math section that we are doing in class. I am trying out some problems in my math book, but they prove quite difficult. 1. In a certain parallelogram, if the measure …
3. ### math-algebra-angles

The degree measures of two angles of a triangle are consecutive even integers. If the measure of the third angle is 50 degrees more than twice the measure of the least angle. Find the measure of each angle.
4. ### Algebra 2 review

In triangle ABC, the ratio of the measure of angle A to the measure of angle B is 3:5. The measure of angle C is 20 more than the sum of the measure of angles A and B. What is the measure of each angle in triangle ABC?
5. ### math

The sum of the measures of the angles of any triangle is 180 degrees. In triangle abc, angles a and b have the same measure, while the measure of angle c is 78 degrees larger than each of a and b. What are the measures of the three …
6. ### math

in a triangle, the measure of the first angle is twice the measure of the second.the measure of a third triangle is 64 degrees more than athe measure of the second angle. Use the facts that the sum of the measures of the three angles …
7. ### Geometry

Triangle LM has vertices K(3,2) L(-1,5) and M(-3,-7) Write the angles in order from the least to greatest measure
8. ### Geometry

Triangle KLM has vertices K (3,2) L(-1,5) and M(-3,-7) write the angles in order from the least to greatest measure show all work
9. ### Math HELPP!!

Eric Drew and up to's triangle. Which of the following could be true for Eric's triangle. A: all three angles have equal measures B: possible angle measures of the triangle are 92, 48, and 40•• C: two of the angles are equal, and …
10. ### cwi

The sum of the measures of the angles of any triangle is 180 degrees. In triangle ABC, the measure of angle A is 70° more than the measure of angle B. The measure of angle B is twice the measure of angle C. Find the measure of each …

More Similar Questions