OCTA=8, an octagon has 8 sides, thus if one side is 6mm, then all sides, namely the perimeter, is 6+6+6+6+6+6+6+6, or 48.
now, we know what the apothem is.
now, we know what the apothem is.
A plane, parallel to the base of a cone intersects the cone at the midpoint between points A and B. Determine the area of the cr
2 answers:
Answer:
Area of cross-section is
Step-by-step explanation:
Given a cone and a plane parallel to base intersect the cone at the mid point of points between A and B.
We have to find the area of cross-section formed by intersection of the plane and the cone which is a new circle formed.
Given, height=20 in
radius=6 in
By mid point theorem i.e the line segment formed by joining the mid points of two side of triangle is parallel to third equal to half of the third side.
therefore new circle formed is of radius 3 in
Hence, area of cross-section formed by intersection of the plane and the cone which is a new circle formed=
=
=
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Answer:
The expected number of men in the delegation is 0.86.
Step-by-step explanation:
Number of men = 3
Number of women = 4
A delegation of 2 is selected.
Let X be the number of men selected. So, the possible values of X are 0,1,2.
The expected number of men in the delegation is
Therefore, the expected number of men in the delegation is 0.86.