| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.61 |
| Score | 0% | 52% |
If the length of AB equals the length of BD, point B __________ this line segment.
intersects |
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bisects |
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trisects |
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midpoints |
A line segment is a portion of a line with a measurable length. The midpoint of a line segment is the point exactly halfway between the endpoints. The midpoint bisects (cuts in half) the line segment.
Which of the following statements about a parallelogram is not true?
the perimeter of a parallelogram is the sum of the lengths of all sides |
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opposite sides and adjacent angles are equal |
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a parallelogram is a quadrilateral |
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the area of a parallelogram is base x height |
A parallelogram is a quadrilateral with two sets of parallel sides. Opposite sides (a = c, b = d) and angles (red = red, blue = blue) are equal. The area of a parallelogram is base x height and the perimeter is the sum of the lengths of all sides (a + b + c + d).
If b = -7 and y = 4, what is the value of -5b(b - y)?
| -390 | |
| -385 | |
| 392 | |
| -30 |
To solve this equation, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)
-5b(b - y)
-5(-7)(-7 - 4)
-5(-7)(-11)
(35)(-11)
-385
The dimensions of this cylinder are height (h) = 1 and radius (r) = 7. What is the surface area?
| 54π | |
| 112π | |
| 120π | |
| 182π |
The surface area of a cylinder is 2πr2 + 2πrh:
sa = 2πr2 + 2πrh
sa = 2π(72) + 2π(7 x 1)
sa = 2π(49) + 2π(7)
sa = (2 x 49)π + (2 x 7)π
sa = 98π + 14π
sa = 112π
The dimensions of this cube are height (h) = 9, length (l) = 9, and width (w) = 6. What is the surface area?
| 102 | |
| 378 | |
| 318 | |
| 34 |
The surface area of a cube is (2 x length x width) + (2 x width x height) + (2 x length x height):
sa = 2lw + 2wh + 2lh
sa = (2 x 9 x 6) + (2 x 6 x 9) + (2 x 9 x 9)
sa = (108) + (108) + (162)
sa = 378