Homework Help: construct a triangle

Posted by Sam on Wednesday, August 8, 2007 at 5:36pm.

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.

No one has answered this question yet.

Answer this Question

Related Questions

math - construct an equilateral triangle ABC in which altitude drawn from ...
maths-constructions - Construct a rhombus ABCD in which AB= 6 cm and angle ABC= ...
Geometry - I need to bisect two angles of a triangle, measure the triangle I ...
Algebra 2 review - In triangle ABC, the ratio of the measure of angle A to the ...
geometry - The medial triangle of a triangle ABC is the triangle whose vertices...
algebra - The vertices's of triangle ABC are A(-1,2), b(0,3), and c(3,1). ...
math - The sum of the measures of the angles of any triangle is 180 degrees. In...
Math - Triangle ABC has vertices A(0,4),B(1,2),and C(4,6). Determine whether ...
Math - A triangle has 2 angles that measure 60 each. Which of the following best...
simple GEOMETRY!! - In triangle ABC, ∠ABC=30∘,∠ACB...

For Further Reading

First Name:
School Subject:
Answer: