| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.50 |
| Score | 0% | 70% |
If the length of AB equals the length of BD, point B __________ this line segment.
midpoints |
|
bisects |
|
intersects |
|
trisects |
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.
If angle a = 62° and angle b = 63° what is the length of angle c?
| 86° | |
| 99° | |
| 55° | |
| 106° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 62° - 63° = 55°
If a = 4, b = 9, c = 4, and d = 7, what is the perimeter of this quadrilateral?
| 12 | |
| 13 | |
| 21 | |
| 24 |
Perimeter is equal to the sum of the four sides:
p = a + b + c + d
p = 4 + 9 + 4 + 7
p = 24
What is the area of a circle with a radius of 5?
| 2π | |
| 5π | |
| 25π | |
| 9π |
The formula for area is πr2:
a = πr2
a = π(52)
a = 25π
The formula for the area of a circle is which of the following?
a = π r |
|
a = π r2 |
|
a = π d |
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a = 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.