| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.77 |
| Score | 0% | 55% |
If a = c = 9, b = d = 3, and the blue angle = 61°, what is the area of this parallelogram?
| 27 | |
| 36 | |
| 18 | |
| 2 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 9 x 3
a = 27
The dimensions of this cube are height (h) = 1, length (l) = 4, and width (w) = 6. What is the volume?
| 168 | |
| 18 | |
| 28 | |
| 24 |
The volume of a cube is height x length x width:
v = h x l x w
v = 1 x 4 x 6
v = 24
A(n) __________ is to a parallelogram as a square is to a rectangle.
triangle |
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trapezoid |
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quadrilateral |
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rhombus |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.
Which of the following statements about a triangle is not true?
perimeter = sum of side lengths |
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sum of interior angles = 180° |
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area = ½bh |
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exterior angle = sum of two adjacent interior angles |
A triangle is a three-sided polygon. It has three interior angles that add up to 180° (a + b + c = 180°). An exterior angle of a triangle is equal to the sum of the two interior angles that are opposite (d = b + c). The perimeter of a triangle is equal to the sum of the lengths of its three sides, the height of a triangle is equal to the length from the base to the opposite vertex (angle) and the area equals one-half triangle base x height: a = ½ base x height.
The formula for the area of a circle is which of the following?
c = π d |
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c = π r |
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c = π r2 |
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c = π d2 |
The circumference of a circle is the distance around its perimeter and equals π (approx. 3.14159) x diameter: c = π d. The area of a circle is π x (radius)2 : a = π r2.