Answer:
Area of a triangle =  area of rectangle
 area of rectangle
Step-by-step explanation:
Given:
Height of triangle = n cm,  Base of triangle = m 
Length of rectangle = n cm, Width of rectangle = m cm
Area of ΔTRI =  base × height
  base × height
                      =   ( m ) × (n)   ⇒
  ( m ) × (n)   ⇒  mn
 mn
Area of Rectangle RECT =  Length × Width
                                           = m × n ⇒  = mn
Comparing Area of triangle and rectangle.
  mn =  mn
 mn =  mn
We can conclude that area of triangle is half of the area of rectangle.
 
        
             
        
        
        
34 im pretty sure
i have to use 20 characters so i am typing this
        
                    
             
        
        
        
Step-by-step explanation: Do u still want this answer tell me because i dont wanna waste my time lol I will comment the answer if u need it
 
        
             
        
        
        
Answer:
7.92 m.
Step-by-step explanation:
Mean height = ∑(f . x) / ∑f  where  x is the midpoint and f the frequencies
The midpoints for the heights are:
2 for frequency 8              ( 0 + 4)/ 2 = 2
6 for      ..           21
10 for    ..            12
14 for    ..              7
18 for   ..               2
So the mean is:
[(2*8) + (6*21) + (10*12) + (14*7) + (18*2) ] / (8 + 21+12+7+2)
= 396 / 50
= 7.92 m.
 
        
             
        
        
        
Answer:
If you did it three times it would be 4 1/2. If you wanted to make it at least 4 3/4 then you would need to do 1 1/2 4 times.
Step-by-step explanation: