Answer:

Step-by-step explanation:
we know that
using proportion

Answer: option D is the correct answer.
Step-by-step explanation:
Let the height of both cones be h
The radius of the base of a right circular cone is 7 times greater than the radius of another right circular cone. If the radius of the smaller cone is r, then the radius of the larger cone is 7r.
The formula for determining the volume of a cone is expressed as
Volume = 1/3(πr²h)
Volume of the smaller cone is
1/3(πr²h)
Volume of the larger cone is
1/3(π ×(7r)²h)
= 1/3(π ×49r²h)
the volume of the larger cone divided by the volume of the smaller cone is
1/3(π ×49r²h) / 1/3(πr²h) = 49/1 = 49
Z would also be 63 degrees. Triangle WXZ is isosceles, as sides WX and WZ are marked as congruent. This means that the two base angles of the triangle (the bottom two) are congruent. You already know that one of the base angles, X (or WXY), is 63 degrees, so using this reasoning, the other base angle, YZW, is 63 degrees as well. I hope this helps!