Answer:
the 1st one
next
the 3rd one
Step-by-step explanation: edg 2020
 
        
             
        
        
        
Answer:
1080cm²
Step-by-step explanation:
surface area=sum of the area of all the shapes
area of triangle=1/2*base*height
1/2*24*10=120*2(because there are two triangles)=240cm²
10*14=140cm²
24*14=336cm²
Area of slanting figure=26*14=364cm²
add all the results
240+140+336+364=1080cm²
 
        
                    
             
        
        
        
Answer:
Part 22) The area is  and the perimeter is
 and the perimeter is 
Part 24) The area is  and the perimeter is
 and the perimeter is  
    
Part 26) The area is equal to 
Step-by-step explanation:
Part 22) Find the perimeter and area
step 1
The area of a rectangle is equal to

we have


Remember that
When multiply exponents with the same base, adds the exponents and maintain the base
substitute in the formula


step 2
The perimeter of a rectangle is equal to

we have

 
   
substitute in the formula


Part 24) Find the perimeter and area
step 1
The area of triangle is equal to

where


Remember that
When multiply exponents with the same base, adds the exponents and maintain the base
substitute the given values


step 2
Find the perimeter
I will assume that is an equilateral triangle (has three equal length sides)
The perimeter of an equilateral triangle is 

where 

substitute


Part 26) Find the area
The area of a circle is equal to

where

Remember the property

substitute in the formula the given value


 
        
             
        
        
        
Step-by-step explanation:
always write what you know
circumference
U = 2 x pi x r
r = d/2
U = 39.25
rearrange and solve for r
U / (2 x pi) = r
solve for diameter
2r = d
 
        
             
        
        
        
First let's get rid of the  in the denominator of the fraction on the right side of the equation. This will help to get only
 in the denominator of the fraction on the right side of the equation. This will help to get only  and a coefficient on one side of the equation:
 and a coefficient on one side of the equation:


Now, simply divide by 730 to find  :
:

