Diagonal cross section of a cylinder -----> ellipse
cross section parallel to the base of a cone -----> A) circle
shape created when a semi−circle is rotated about the y−axis -----> D) sphere
diagonal cross section through the widest part of a sphere -----> C) great circle
perpendicular cross section of a cone -----> B) triangle
Answer:
0.375
Step-by-step explanation:
Answer:
1). 16 π cm^2
2). 112 π cm^3
3). 351.68 cm^3
***If the explanation doesn’t make sense, let me know, and I’ll try to explain in a different way.
Answer:
the rotation angle is double the angle between the lines
Step-by-step explanation:
The Reflections in Intersecting Lines Theorem will tell you that the effective angle of rotation is double the angle between the intersecting lines. Here, the figure is effectively rotated 144°, not 72°. If a 72° rotation is desired, the lines need to intersect at an angle of 36°.
The answer is 3 and one third!
20/4=5
(5*2)/3= 3 1/3
