Answer:

Step-by-step explanation:
step 1
we know that
The area of Tracy's backyard is 
Convert to an improper fraction

step 2
To find the area of the garden, multiply the area of the backyard by 1/3
so

 
        
             
        
        
        
Answer:
a 166 67/100
b 20 1/4
c 829 77/100
d 664 47/50
e 208 4/25
Step-by-step explanation:
you need to find the common denominator (the number on the bottom) so for the first one when can 10 = 100 if you multiply 10 x 10 you get 100 so multiply the entire fraction by 10 and you will get 10/100 so the equation would be 381 10/100 - 214 43/100 which equals 166 67/100 then just do the same thing for the rest of them
 
        
             
        
        
        
1. Which polygon or polygons are regular?
A regular polygon is a polygon that is equiangular (all angles are equal in measure) and equilateral (all sides have the same length). 
Therefore your answer is:
A. equilateral triangle
C. square
2. Which polygon is always irregular?
traingle - NOT (equilateral triangle)
trapezoid - YES
square - NOT
hexagon - NOT (regular hexagon)
 
        
             
        
        
        
Answer:
Step-by-step explanation:
1. To find the area of a semicircle the formula is

The square

2. Triangle

Rectangle


3. 
Semicircle

Square


 
        
                    
             
        
        
        
Answer:
Step-by-step explanation: