Can you use the Law of Cosines if you are given a = 41, b = 55 and the measure of angle A equals 56 degrees ? Why or why not?

No you cannot use the law of cosines

Instead you would go with the law of sines. You could write

sin(A)/a = sin(B)/b

sin(56)/41 = sin(B)/55

and solve for angle B.

The law of cosines only works if you know two sides and the included angle between those sides. So if we know that a = 41 and b = 55, then we can use the law of cosines if we knew the value of angle C.

A slight variation is that we can use the law of cosines if we knew all three sides of the triangle (knowing the angles isn't needed as you can solve for them using the law of cosines).

6.5

step-by-step explanation:

you said it was in the question

~courtney

in the math equation 8 x 7 = 56, the 8 and the 7 are both factors of 56, since in this lesson we will use square tiles to figure out the factors of a whole find as many different arrays as you can, but follow one important rule: all the rows must have the i can make two rows of nine, so 2 and 9 are both factors of 18.

step-by-step explanation: