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Artist 52 [7]
3 years ago
7

Round to the nearest tenth.

Mathematics
1 answer:
sammy [17]3 years ago
4 0

Answer:

c=9.3\ units

Step-by-step explanation:

step 1

Find the measure of angle A

we know that

The sum of the interior angles in any triangle must be equal to 180 degrees

so

A+B+C=180^o

substitute the given values

A+110^o+30^o=180^o\\A=40^o

step 2

Find the length side c

Applying the law of sines

\frac{a}{sin(A)}=\frac{c}{sin(C)}

substitute the given values

\frac{12}{sin(40^o)}=\frac{c}{sin(30^o)}

solve for c

c=\frac{12}{sin(40^o)}sin(30^o)

c=9.3\ units

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