+0  
 
0
55
3
avatar

Find the perimeter and the area of the figure to the nearest hundredth.

 

 Mar 23, 2021
 #1
avatar+141 
+1

the perimeter of the figure is:

 

10 + 4 + 4 + (10/2 * pi) / 2 = 18 + 5/2 pi 

 

to the nearest hundredth (assuming pi is 3.14), that would be 18 + 7.85 = 25.85.

 

now for the area:

 

10 * 4 + (10/2)^2 * pi = 40 + 25pi

 

to the nearest hundredth, that would be 40 + 78.5 = 118.5.

 

 

hope this helped! sorry if my explanations weren't too clear. please let me know if you are confused about anything i did smiley

 Mar 23, 2021
 #2
avatar
+1

 

Here's what I get for the perimeter.    

 

                4                          one short side of partial rectangle  

                4                          other short side of partial rectangle  

              10                          long side of partial rectangle  

 

10π                                     The circumference of a circle is π times its diameter, i.e., π • 10 in this figure.  

——   =  15.70                     Using 3.14 for the value of π, the circumference of the entire circle would be 31.4  

  2                                        But there's only half a circle, so we take half of 31.4  

 

              33.70 inches        Total up the above.  

 

 

The first answerer got the area correct.  

.

 Mar 23, 2021
 #3
avatar+141 
+1

oh, oops, i forgot that the circumference is just the diameter * pi. 

 

good work, Guest !!

idyllic  Mar 23, 2021

18 Online Users

avatar