Answer:
66 cm
Step-by-step explanation:
Diameter (d) = 21 cm

Answer: 90
Step-by-step explanation:

Answer:
a= c/2
b= (c/2)×√3
side b is the side with the 60 degree angle.
side a is the side with the 30 degree angle.
using the theorem that the side with the 60 degree × 2 = length of side c and the side with the 60 degree × √3 = b.
I get the following equations shown above.
Answer:
Mix A is the most orangey, Mix C is the least orangey
Step-by-step explanation:
Mix A largest proportion of concentrate to water
Mix C is the smallest proportion of concentrate to water
Answer:
C Hope this helps This may be wrong though
Step-by-step explanation: