Use the Law of Sines to solve for the variable. Round your answer to the nearest whole number. Write the value only. *

y ≈ 61

Step-by-step explanation:

Using the Sine rule in the triangle

= ( cross- multiply )

y × sin18° = 21 × sin117° ( divide both sides by sin18° )

y = ≈ 61 ( to the nearest whole number )

the graph in the attached figure

step-by-step explanation:

we have

using a graphing tool

the graph in the attached figure

the roots are ( x-intercepts) x=-0.5,x=1,x=3

the y-intercept is the point (0,3)

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc