You need to resolve your vector equation in components. It will give you a system of equation which you will be able to resolve in terms of weight.
Two sides, or two angles + one side.
You will also need the angles so that you can use the Isosceles Triangle Theorems to solve for the base of isosceles triangle when only two sides are given.
By using the cosine rule in trigonometry the angles of the triangle can be worked out.
Using a protractor is the simplest way of solving the measurements of angles.
A protractor is used for measuring angles and the 3 angles in a triangle add up to 180 degrees.
by calculating the angles
Alternate angles have the same measure, so there is nothing to solve!
weight is m*g, mass times the gravity acceleration constant for the spoken plant. Here on earth, g is about 10, which means, if you are given a weight, you need to divide it by 10, and you will get the mass. (Assuming we are on planet earth that is.)
It depends on what shape you have.
The 3 interior angles of any triangle add up to 180 degrees
First find 180 minus the vertex angle and divide that by 2 to get the other angles. Then solve the other sides by using sin(vertex angle)/base=sin(other angles)/other sides.
It means to find all of its sides and angles.