Question

Need help, due ASAP. Please help.

Answer 1

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