The answer is 21.
Hope this helps. Have a nice day.
Answer:
Do not listen to the other answer! Here is how you solve that.
Step-by-step explanation:
For the semicircle, here is the formula for area: 
For the triangle, here is the formula for area:
Then, add.
So,
Triangle:


Semicircle:


Your answer is 
Answer:1.23777
Step-by-step explanation: Calculators answer
Answer:
2r(2r)
R
Pi/4
Pi times r cubed
Step-by-step explanation:
Believe it or leave it