Answer:
B is the correct answer.
Step-by-step explanation:
15 times 5 plus 450
= 525
25 times 5 plus 400
= 525
The volume prism refers to the number of cubic units that will exactly fill the figure. The volume of a rectangular prism can be found or calculate by using the formula V=Bh, where B represents to the area of the base or in other words the length and width of the rectangle.
In this exercise is given that the measurements of a prism are 2ft, 3/2ft, and 3/2ft; and it is asked to find its volume. In order to find the volume of the prism, you should substitute the given values into the previous mention formula.
V=Bh
V=(2ft)(3/2ft)(3/2ft)
V=9/2ft^3 or 4 1/2ft^3
The volume of the prism is 4 1/2ft^3 as a mixed number.
Step-by-step explanation:
the lateral area of the cone is, well, the lateral area.
the total surface area of the cone is the lateral area plus the area of base circle.
so, the difference between both is the area of the base circle :
120pi - 70pi = 50pi
the area of a circle is
pi×radius²
and that is in our case
pi×radius² = 50pi
radius² = 50
radius = sqrt(50) = 7.071067812... ≈ 7.1 units
therefore, C is the right answer.
Answer:
SA=2lw+2lh+2hw, to find the surface area
Step-by-step explanation:
