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Debora [2.8K]
2 years ago
14

Someone help please!?!

Mathematics
1 answer:
mojhsa [17]2 years ago
7 0

Answer: a≈6,1.

Step-by-step explanation:

                                 The sine theorem states:

                                \boxed {\frac{a}{sinA^0} =\frac{b}{sinB^0}= \frac{c}{sinC^0} },             ⇒

a=\frac{c*sinA^0}{sinC^0}

m∡A=180°-(m∡B°+m∡C°)

=180°-(68°+76°)

=180°-144°

=36°.           ⇒

a=\frac{c*sin36^0}{sin76^0}\\ =\frac{10*sin36^0}{sin76^0} \\\approx6,1.

Good luck an' have a nice day!

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