Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identities
• tanx = 
• sin²x + cos²x = 1 ⇒ sin²x = 1 - cos²x
Consider the left side

=
- 
= 1 - cos²x
= sin²x = right side ⇒ verified
4 multiplied by x to the power of five
Yes, they're equivalent values.
Answer:
Blue circle=9π-28.284
Yellow circle=23/2π-36.128
Step-by-step explanation:
the circumfrence is worked out using the equation =pi x diameter
hope this helps ;) xx