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Answer:

cosS = 48/73

Step-by-step explanation:

cosS is asking for the cosine of angle S.

Cosine is one of the primary trig. ratios, which you can remember using the acronym:

SohCahToa

"o" is opposite.

"h" is hypotenuse.

"a" is adjacent.

Cosine is the "Cah" in the acronym.

cos = a/h

The adjacent side is touching the angle. The hypotenuse is the longest side.

cosS = adjacent/hypotenuse

= QS/RS

= 48/73    This number is already in its lowest terms.

Answer:

Cos S = 48/ 73

Step-by-step explanation:

Given-

Δ QRS is right triangle.

∠ Q = 90°, QR ( Height ) = 55, QS ( Base ) = 48, RS ( Hypotenuse ) = 73

Cos S = [tex]\frac{Base}{Hypotenuse} = \frac{QS}{RS}[/tex]

Cos S = [tex]\frac{QS}{RS}[/tex]

∴ Cos S = [tex]\frac{48}{73}[/tex]

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