| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.63 |
| Score | 0% | 73% |
If angle a = 52° and angle b = 70° what is the length of angle c?
| 58° | |
| 133° | |
| 57° | |
| 78° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 52° - 70° = 58°
If a = 2, b = 8, c = 1, and d = 3, what is the perimeter of this quadrilateral?
| 18 | |
| 14 | |
| 24 | |
| 10 |
Perimeter is equal to the sum of the four sides:
p = a + b + c + d
p = 2 + 8 + 1 + 3
p = 14
If side x = 5cm, side y = 13cm, and side z = 7cm what is the perimeter of this triangle?
| 21cm | |
| 36cm | |
| 25cm | |
| 33cm |
The perimeter of a triangle is the sum of the lengths of its sides:
p = x + y + z
p = 5cm + 13cm + 7cm = 25cm
A(n) __________ is to a parallelogram as a square is to a rectangle.
rhombus |
|
quadrilateral |
|
triangle |
|
trapezoid |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.
A trapezoid is a quadrilateral with one set of __________ sides.
parallel |
|
right angle |
|
equal length |
|
equal angle |
A trapezoid is a quadrilateral with one set of parallel sides.