3 years ago

‼️ help please ASAP ‼️

Mathematics

2 answers:

ratelena [41]3 years ago

4 0

Cos = adjacent leg/hypotenuse

Hypotenuse is BC.
For angle B, adjacent leg is AB.

cos B= AB/BC

Eduardwww [97]3 years ago

4 0

The answer to this question is AB / BC as cosine is defined for a right angle triangle as the ratio of the length of the adjacent side to the angle to the hypotenuse.

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3 years ago

Triangle ABC contains side lengths b=3 inches and c= 5 inches in two or more sentences describe whether or not it is possible fo

Scrat [10]

Answer:

Since sine of all angles are always less than one, this shows there is no possible way to have an angle C. Thus it is impossible to have a triangle ABC with the given properties of side lengths b=3 inches and c= 5 inches to have angle B =45 degrees.

Step-by-step explanation:

In the attached drawing, each of the tic-marks are equal and

represent 1 inch each. The angle B has measure 45. We can

see by the arc that the line AC, which equals 3 inches, is

not long enough to reach the slanted side of the 45 angle.

Therefore triangle ABC is not possible. We can also show

by the law of sines that no triangle ABC with the given

properties in possible.