9514 1404 393
Answer:
   sin(D) = cos(E) = (√3)/2
   cos(D) = sin(E) = 1/2
Step-by-step explanation:
The mnemonic SOH CAH TOA is intended to remind you of the relationships between trig functions and right triangle sides.
   Sin = Opposite/Hypotenuse
   Cos = Adjacent/Hypotenuse
For this diagram, this means ...
   sin(D) = cos(E) = (13√3)/26 = (√3)/2
   cos(D) = sin(E) = 13/26 = 1/2
 
        
             
        
        
        
Answer:
The awnser on edge is C)147
Step-by-step explanation:
Hope this helped
 
        
             
        
        
        
Answer:
A  = 222 units^2
Step-by-step explanation:
To find the area of this trapezoid, first draw an imaginary horizontal line parallel to AD and connecting C with AB  (Call this point E).  Below this line we have the triangle CEB with hypotenuse 13 units and vertical side (21 - 16) units, or 5 units.  Then the width of the entire figure shown can be obtainied using the Pythagorean Theorem:
(5 units)^2 + CE^2 = (13 units)^2, or 25 + CE^2 = 169. Solving this for CE, we get |CE| = 12.
The area of this trapezoid is
A = (average vertical length)(width), which here is:
        (21 + 16) units
A  = --------------------- * (12 units),   which simplifies to:
                   2
A = (37/2 units)(12 units)  =  A  = 37*6 units  =  A  = 222 units^2
 
        
             
        
        
        
20 minutes
Because-
If he did ten more minutes then friday just do 30 - 10 whih 20 mins
        
             
        
        
        
Formula for the volume of cone is 
Where r= radius of the cone
h = height of the cone
The value of pi is 3.14
Given volume of larger cone is 131 cm^3
Volume of larger cone = 
131 = 
Solve for h
131 = 26.1667 *h
So h= 5 cm
The height of bigger cone = 5cm
Now we find the volume of smaller cone
Two cones similar so the sides are in proportional


Height of smaller cone = 2cm
volume of smaller cone = 
= 8.38cm^3