18. Geometry - Triangles and Quadrilaterals

Question 1

Define “Equiangular Triangle

Answer 1

1. A triangle that has 3 equal angles at 60 degrees

Question 2

Define “Equilateral Triangle”

Answer 2

1. A triangle whose 3 sides are equal in length

Question 3

Define “Isosclese Triangle”

Answer 3

1. A triangle that has 2 sides, or legs, or equal length

Question 4

Define “Obtuse Triangle”

Answer 4

1. A triangle that has one angle that is greater than 90 degrees

Question 5

Define “Parallelogram”

Answer 5

1. A 4 sided polygon that consists of 2 pairs of parallel line segments

Question 6

Define “Polygon”

Answer 6

1. A closed figure in the plane whose boundary is a set of at least 3 straight lines that intersect at each vertex, or sharp point, of the figure

Question 7

Define “Quadrilateral”

Answer 7

1. A polygon with 4 sides

Question 8

Define “Rectangle”

Answer 8

1. A parallelogram whose angles are all right angles

Question 9

Define “Right Angle”

Answer 9

1. An angle that measures 90 degrees

Question 10

Define “Right Triangle”

Answer 10

1. A triangle that has 1 angle that measures 90 degrees

Question 11

Define “Scalene Triangle”

Answer 11

1. A triangle whose angles are all less than 90 degrees

Question 12

Define “Square”

Answer 12

1. A rectangle whose 4 legs are all the same length

Question 13

Define “Triangle”

Answer 13

1. A polygon that has exactly 3 sides

Question 14

What is the sum of the angles in a triangle?

Answer 14

1. 180 degrees

Question 15

Define “Vertex”

Answer 15

1. The corner-like place where 2 line segments meet in a polygon

Question 16

What is the first rule of a paralellogram?

Answer 16

1. The sum of the degrees of the angles inside a parallelogram, rectangle, or square is always 360 degrees

Question 17

What is the second rule of a parallelogram?

Answer 17

1. The area of any parallelogram, rectangle, or square is equal to b x h, where b is the base and h is the height of the triangle

Question 18

What is the third rule of a parallelogram?

Answer 18

1. The perimeter of any such object is the sum of the lengths of the 4 legs