16. GEOLOGY A tiankeng is a sinkhole with nearly vertical walls. The Tianpingmiao tiankeng is approximately cylindrical with
a diameter of 180 meters and a depth of 420 meters.
a. If the top of the tiankeng is open and plants can grow on
the bottom and sides, what is the surface area available
for plants? Round to the nearest square meter.
b. What is the volume of water that could fill the Tianpingmiao
tiankeng?

b

step-by-step explanation:

option: d is the correct answer.

d) none of the above.

step-by-step explanation:

clearly from the figure attached to the question we could see that there is no shape given. hence without any shape given in the figure and after rotation we can't obtained a square pyramid.

since, to obtain a image we need a proper figure of the pre-image so that it can be transformed.

hence, the correct answer is:

d) none of the above.

step-by-step explanation:

answer: what are the following choices