Answer:
I will use two different type of prisms:
Triangular prism:
The volume is equal to the area of the triangle multiplied by the heigt of the prism.
So:
300m^3 = A*H
Suppose that the triangle is a triangle rectangle with two equal cathetus of lenght L = 6m, then the area of the triangle is:
A = 6m*6m/2 = 18m^2
300m^3 = 18m^2*H
H = 300/18 m = 16.6m
So this prism is a triangular prism where the area of the triangular face is 18m^2 and the height is 16.6m
Rectangular prism:
Here the volume of the prism is:
V = W*H*L
Where W is the width, H is the heigth and L is the length.
300m = W*H*L
now we can assign values to two of the values and then find the other value.
Suppose W = 30m, H = 5m
300m^3 = 30m*5m*L = 150m^2*L
L = 300/150 m = 2m
So this prism has a width of 30m, a height of 5m and a length of 2m.
the angle measures in the regular polygon is B)140
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Answer:
643.72 m²
Step-by-step explanation:
The area is the sum of the areas of the parts. The figure can be divided into a triangle and a semicircle.
The formula for the area of the triangle is ...
A = 1/2bh
For the given base of 28 m and height of 24 m, the area is ...
A = 1/2(28 m)(24 m) = 336 m²
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The area of a semicircle is given by the formula ...
A = (π/8)d² . . . . for diameter d
The given diameter is 28 m, so the area is about ...
A = (3.14/8)(28 m)² = 307.72 m²
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Then the total area of the figure is ...
total area = triangle area + semicircle area
total area = 336 m² +307.72 m² = 643.72 m²
Answer:
he paid a lot of money ouch
3/5 ÷ 9/10
...becomes
3/5 * 10/9 = 30/45
...simplify by dividing by 15/15
2/3