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natka813 [3]
3 years ago
10

Need help, due ASAP. Please help.

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

Answer:

a = 36.37 cm

c = 18.19 cm

Step-by-step explanation:

to find a, use tan

⇒ tan = \frac{opposite}{adjacent}

⇒ tan 60 = \frac{21}{a}

tan of 60 is 1.732

⇒ 1.732 = \frac{21}{a}

multiply 21 on both sides

⇒ 1.732 x 21 = \frac{21}{a}x 21

⇒ 36.37 = a

to find c, use sine

⇒ sine = \frac{oppsosite}{hypotenuse}

⇒ sine 60 = \frac{21}{c}

sine of 60 is 0.866

⇒ 0.866 = \frac{21}{c}

muliply 21 on both sides

⇒ 0.866 x 21 = \frac{21}{c} x 21

⇒ 18.19 = c

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