This figure shows two shaded regions and a non-shaded region. Angles in the figure that appear to be right angles are right angles.
+2 in. +
T
2 in.
3 in.
5 in.
4 in.
8 in.
What is the area, in square inches, of the triangular-shaped region that is shaded in
this figure?
Your answer

Drag and drop the answers into the boxes to complete this informal argument explaining how to derive the formula for the volume of a cone. since the volume of a cone is part of the volume of a cylinder with the same base and height, find the volume of a cylinder first. the base of a cylinder is a circle. the area of the base of a cylinder is , where r represents the radius. the volume of a cylinder can be described as slices of the base stacked upon each other. so, the volume of the cylinder can be found by multiplying the area of the circle by the height h of the cylinder. the volume of a cone is of the volume of a cylinder. therefore, the formula for the volume of a cone is 1/3 1/2 1/3πr^2h 1/2πr^2h πr^2h πr^2

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3

What is the radius of the cone in the diagram? round your answer to the nearest whole number