Assuming that is y = 4 - x2 → x2 = 4 - y
Crosses y axis (x = 0) at y = 4
volume = π∫x2 dy
= π 1∫4 4 - y dy
= π[4y - y2/2]14
= π[(16 - 16/2) - (4 - 1/2)]
= 9/2 π
sector
NO
No. A sector is bounded by part two radii and part of the circumference.
Circular Ring Sector.
yes!
A bounded region refers to a region in a coordinate plane that can be contained within a finite area and can be enclosed by a finite number of points or curves. In other words, a bounded region has a definite boundary that does not extend infinitely in any direction.
The Tigris River.
sector
NO
No. A sector is bounded by part two radii and part of the circumference.
Instead of the answer being a curve, it is a region. For example, if y > x2 + 4, the answer is not the parabola y = x2 + 4. Instead it is the region above the parabola (as if the bowl were filled with something.)
sector
It is called a sector.
A fault-bounded area or region with a distinctive stratigraphy, structure, and geological history.
Circular Ring Sector.
yes!
It is called a polyhedron.