9. Area of a triangle is proportional to height. If the height increases by a factor of 4, then ...
  The area will increase by a factor of 4. . . . . (2nd selection)
10. The base lengths and height are needed:
  • 5 mm
  • 8 mm
  • 10 mm
        
             
        
        
        
Answer:
13.6 inches.
Step-by-step explanation:
First do 2/5 = x/34, then multiply 34 by 2 and you get 68, then 68 divided by 5 is 13.6! 
Hope this helped!
 
        
             
        
        
        
Answer:
9.18
Step-by-step explanation:
 
        
             
        
        
        
Answer:
452.16 square yards
Step-by-step explanation:
The equation for the SA of a sphere is A=4πr2
Substituting r = 6 yards : A= 4 * 3.14 * 6^2 = 452.16 square yards
 
        
                    
             
        
        
        
The perimeter of the equilateral triangle will be 76.2 in
<u>Explanation:</u>
Altitude of an equilateral triangle, H = 22 in
Perimeter, p = ?
Let a be the side of the triangle
We know:

Perimeter = 3a
P = 3 X 25.4 in
P = 76.2 in