V = 4/3(pi)(r^3)
V = 4/3(pi)(4.2^3)
V = 310 cm^3
Good luck!
Answer:
40 in.^2
Step-by-step explanation:
Let's name the 2 shaded triangles: The left one is T1 and the right one is T2.
The area of a right triangle can be found using the equation (a*b)/2.
The 2 legs of T1 are 8 in. and 6 in. (from 10 - 4)
Area of T1 = = 24 in.^2
The 2 legs of T2 are 8 in. and 4 in.
Area of T2 = = 16 in.^2
Area of shaded region = 16 + 24 = 40 in.^2
Answer:
7 9/10 + 5/10 = 8 4/10
Step-by-step explanation:
Answer: The correct option is D.
Explanation:
It is given that the triangle ABC is an isosceles triangle. It is also given that the line BD is the median of triangle ABC.
Since DB is median it means point D divides the line AC in two equal parts.
The The median of an isosceles triangle is always a perpendicular bisector of the opposite side. Since the median is perpendicular on side AC, therefore the sides AB and CB are equal.
In triangle ABD and CBD,
.... (Isosceles triangle)
.... (D is midpoint of AC)
.... (Common Side)
Therefore option D is correct.