In the figure, point B is the midpoint of line AC. Use the figure to answer the questions.

(A) Jeremy says that Δ ABD is congruent to Δ CBD by the SAS congruence postulate. Do you agree or disagree?

(B) Suppose that it is also known that line AD is congruent to line CD. Which postulate or theorem can be used to prove that Δ ABD is congruent to Δ CBD? Justify your Answer

Which explanation can be used to informally derive the formula for the volume of a cone? a cylinder is exactly 3 times bigger than a cone with the same height and radius. therefore, the formula for the volume of a cone is 13 of the volume of a cylinder with the same height and radius. a cone is similar to a triangular pyramid except that a cone has curved edges. therefore, the formula for the volume of a cone can be derived by using the formula of a triangular pyramid and using the radius instead of the base length. a cone is approximately the same size as 1.5 spheres. using the formula for the volume of a sphere and multiplying it by 1.5 will give the formula for the volume of a cone. a cone consists of a circle as a base and triangles for its body. the formula for the volume of a cone can be derived by adding the formula for the area of circle and the area of the number of triangles that will cover the body of a cone.

What is the slope of the line shown below?

Type the correct answer in each box. spell all the words correctly, and use numerals instead of words for numbers. if necessary, use / for the fraction bar(s).