| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.58 |
| Score | 0% | 72% |
Order the following types of angle from least number of degrees to most number of degrees.
acute, right, obtuse |
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right, obtuse, acute |
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right, acute, obtuse |
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acute, obtuse, right |
An acute angle measures less than 90°, a right angle measures 90°, and an obtuse angle measures more than 90°.
Solve 8b - 5b = 7b + 8x + 6 for b in terms of x.
| x - \(\frac{4}{9}\) | |
| 13x + 6 | |
| -1\(\frac{1}{2}\)x - 1\(\frac{1}{2}\) | |
| -3x + 3 |
To solve this equation, isolate the variable for which you are solving (b) on one side of the equation and put everything else on the other side.
8b - 5x = 7b + 8x + 6
8b = 7b + 8x + 6 + 5x
8b - 7b = 8x + 6 + 5x
b = 13x + 6
If side x = 13cm, side y = 10cm, and side z = 6cm what is the perimeter of this triangle?
| 29cm | |
| 42cm | |
| 33cm | |
| 21cm |
The perimeter of a triangle is the sum of the lengths of its sides:
p = x + y + z
p = 13cm + 10cm + 6cm = 29cm
A quadrilateral is a shape with __________ sides.
4 |
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2 |
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3 |
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5 |
A quadrilateral is a shape with four sides. The perimeter of a quadrilateral is the sum of the lengths of its four sides.
The formula for the area of a circle is which of the following?
a = π r |
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a = π d |
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a = π d2 |
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a = π r2 |
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.