In the triangle pictured, let A, B, C be the angles at the three vertices, and let a, b,c be the sides opposite those angles.

According to the ``law of sines,'' you always have:
b/a=sinB/sinA

Suppose that a and b are pieces of metal which are hinged at C. At first the angle A is ?/4 radians=45o and the angle B is ?/3 radians = 60o. You then widen A to 46o, without changing the sides a and b. Our goal in this problem is to use the tangent line approximation to estimate the angle B.
(a) Notice that the angle B is a function of the angle A; i. e. B=f(A). Consequently, it makes sense to calculate the implicit derivative:
dB/dA
=(?3) / (?2)=
(b) Calculate
dB/dA
when A=?/4 and B=?/3; leave your answer in EXACT FORM:
(c) Write the linear approximation of f at A= ?/4:
(A ?/4) +
(d) Using (c), when A= 46o, B is approximately
degrees; either answer exactly or to three decimal places.

you are saying it as if a fact, not a question, but yes, you would be correct? ; )

step-by-step explanation:

idek

step-by-step explanation:

answer: check all that apply, where the options?

step-by-step explanation:

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