Answer:
The formula to calculate the total surface area of a cylinder is expressed as, total surface area of cylinder = 2πr(r + h). This total surface area includes the area of the 2 bases (2πr2) and the curved surface area (2πrh). Here 'r' is the radius and 'h' is the height of the cylinder.
Step-by-step explanation:
X = 28
you divide 112 by 4 to get 28
Well the answer is really simple by what i see that the number that is in the question is easy to figure out so i can give you answer quick and easy the answer to this question is 3,480 kilometers see 476 rounded to the nearest whole number would in fact 480 because 76+5=80 so the answer is 480
Answer:
9/7
Step-by-step explanation:
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Given the question: Arrange the reasons for the proof in the correct order.
Prove: If the diameter of a circle is 6 meters and the formula for
diameter is d = 2r, then the radius of the circle is 3 meters.
A. If r ≠ 3 m, then d ≠ 6 m. Since the contrapositive is true, the
original statement must also be true. Therefore, if the diameter of a
circle is 6 meters, then the radius is 3 meters.
B. Multiplication of real numbers shows that d = 2(2 m) = 4 m.
C. Substitute r = 2 m into d = 2r.
D. Assume that r ≠ 3 m. For example, the radius equals another length,
such as r = 2 m.
To prove that i<span>f the diameter of a circle is 6 meters and the formula for diameter is d = 2r, then the radius of the circle is 3 meters by contradiction, we assume that the radius in not equal to 3 meters, for </span>example, the radius equals another length,
such as r = 2 m.
Next, we substitute the value: r = 2m nto the original equation that says that d = 2r, i.e. d = 2(2m) = 4m which is not true and contradicts the original statement that the diameter of the circle is 6m.
Therefore, the arrangement of the proof is as follows:
D. Assume that r ≠ 3 m. For example, the radius equals another length,
such as r = 2 m.
C. Substitute r = 2 m into d = 2r.
B. Multiplication of real numbers shows that d = 2(2 m) = 4 m.
A. If r ≠ 3 m, then d ≠ 6 m. Since the contrapositive is true, the
original statement must also be true. Therefore, if the diameter of a
circle is 6 meters, then the radius is 3 meters.
D C B A.