Answer:
6√3
Step-by-step explanation:
6^2+x^2=12^2
36+x^2=144
-36 -36
x^2=108
x=6√3
Answer:
25 cm^2
Step-by-step explanation:
the area of 1 triangle is 20, so the missing length of the triangle is 5. 5x5=25
Answer:
179.50 
Step-by-step explanation:
The equation for volume of a cone is:

The radius is half of the diameter so r= 3.5 in
The height is 4 times the radius so h=14

V= 179.50 
Answer:
c
Step-by-step explanation:
only rhombus satisfied the question