Answer:
a = 36.37 cm
c = 18.19 cm
Step-by-step explanation:
to find a, use tan
⇒ tan = 
⇒ tan 60 = 
tan of 60 is 1.732
⇒ 1.732 = 
multiply 21 on both sides
⇒ 1.732 x 21 =
x 21
⇒ 36.37 = a
to find c, use sine
⇒ sine = 
⇒ sine 60 = 
sine of 60 is 0.866
⇒ 0.866 = 
muliply 21 on both sides
⇒ 0.866 x 21 =
x 21
⇒ 18.19 = c
Answer:
x=3
Step-by-step explanation:
you add 4 every time to solve for x
Answer:
21
Step-by-step explanation:
5x-3x=18+15-9
2x=42 /:2
x=21
Answer:
22°
Step-by-step explanation:
cos B = (c2 + a2 − b2)/2ca
cos B = (
+
-
)/ 2(10)(6)
cos B = .925
B = 22.33