Indicate the method you would use to prove the two 's . If no method applies, enter "none".

Mathematics

1 answer:

LenKa [72]4 years ago

4 0

The simpliest way is to use the AAS Postulate.

AAS Postulate: If two angles and the non-included side of one triangle are equal to the corresponding angles and side of another triangle, the triangles are congruent.

From the diagram you have:

1. one pair of angles with measure 40°;

2. one pair of angles with measure 60°;

3. the non-included side of one triangle is congruent to the non-included side of another triangle (their lengths are 10).

Answer: correct choice is D (AAS)

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Solve the equations below exactly. Give your answers in radians, and find all

kotegsom [21]

Answer:

See below (along with unit circle attached)

Step-by-step explanation:

$sin(t)=-\frac{\sqrt{3}}{2}$

$t=\frac{4\pi}{3},\frac{5\pi}{3}$

$cos(t)=\frac{1}{2}$

$t=\frac{\pi}{3},\frac{5\pi}{3}$

It really helps to use the unit circle! I've attached it below for your convenience. Keep in mind that a point on the unit circle is defined by $(cos(\theta),sin(\theta))$ where $\theta$ is measured in radians.