Answer:
<u>963.73 m²</u>
Step-by-step explanation:
<u>To Find :-</u>
Area of the figure
<u>Solving :-</u>
Area (figure) =  Area (triangle) + Area (semicircle)
= 1/2bh + 1/2πr²
= 1/2 (30 x 34 + 3.14 x 17 x 17)
= 1/2 (1020 + 289 x 3.14)
= 1/2 (1020 + 907.46)
= 1/2 (1927.46)
= <u>963.73 m²</u>
 
        
             
        
        
        
(A) 450 ft squared.
First, calculate the old arena's dimensions. 
10 x 15 = 150.
Calculate the new arena's dimensions.
20 x 30 = 600.
Now subtract 150 from 600.
600 - 150 = 450. 
Hope I helped!
        
             
        
        
        
Answer:
Step-by-step explanation:
4
 
        
                    
             
        
        
        
Answer:
72mm^2 (72 mm squared)
Step-by-step explanation:
so i would work out the little triangle which is 8x6/2=<em><u>24m</u></em>m^2
then do 24x8/2 which is <u><em>96m</em></u>m^2
then take away 24 from 96 which gives the answer of <u><em>72mm^2</em></u>