Answer:
First drawing - answer is:  D: DG, FG and DE
Second drawing - answer is:  π (pi)
Third drawing - answer is:  70° ( If you mean on measure of central angle which is corresponing to the arc CB)
Fourth drawing - answer is: y=55° ( If you mean that the value of angle ∠AOB=70° ) 
Step-by-step explanation:
For the second drawing
arc AB = (r · π / 180) · α = (3 · π/180) · 60 = (180 · π) / 180 = π
For the third drawing
∠CAB is peripheral angle of the central angle ∠CFB. 
∠CFB= 2·∠CAB= 2· 35° = 70°
Good luck!!!
 
        
             
        
        
        
Answer:
2.25
Step-by-step explanation:
1.5 / 0.666 (repeating) = 2.25
 
        
                    
             
        
        
        
Answer:
I hope this help you 
Step-by-step explanation:
 
        
             
        
        
        
Answer: The volume of a sphere with a radius of 5 cm is approximately 523.33 cm3.
Step-by-step explanation:
Hi, to answer this question we have to apply the next formula:
Volume of a sphere (V) = 4/3 π radius³
Replacing with the values given and solving for V (volume)
V = 4/3 (3.14) 5³ = 4/3 (3.14) 125= 523.33 cubic centimeters
The volume of a sphere with a radius of 5 cm is approximately 523.33 cm3.
Feel free to ask for more if needed or if you did not understand something.