Lines & Planes
What is the difference between a line and a line segment?
✅ Segment has endpoints, line extends forever
A set of all points the same distance from a center is what?
Circle
Distance between (−7, −6) and (3, −6)?
✅ 10
Formula for midpoint?
✅ ((x₁+x₂)/2 , (y₁+y₂)/2)
If a point is between X and Y, what must be true about distances?
✅ Segment addition (XY = XW + WY)
What is the only food that can never go bad?
Honey
What is another name for a plane?
✅ A plane can be named using 3 non-collinear points
Lines that never meet are called what?
✅ Parallel lines
Formula for distance between two points?
✅ √[(x₂−x₁)² + (y₂−y₁)²]
Midpoint of (−6, −8) and (0, 8)?
✅ (−3, 0)
What is the midpoint of a segment?
✅ Point that divides into two equal parts
Which country's shape looks like a boot?
Italy
When points lie on the same line they are called what?
✅ Collinear
Lines that meet at 90° are called what?
✅ Perpendicular lines
Distance between (−2,2) and (2,−6) rounded?
✅ 8.94
If midpoint is (3, −1) and one endpoint is (5,3), find the other endpoint.
✅ (1, −5)
If AB ≅ CD, what does that mean?
✅ Same length
What is the name of the green van from Scooby-Doo?
The Mystery Machine
When points lie in the same plane they are called what?
✅ Coplanar
Two figures that have the same size and shape are called what?
✅ Congruent
If AB = 16 and BC = 7, what is AC?
✅ 23
If a point divides a segment 1/6 of the way from A to C — is it closer to A or C?
✅ A
If B is halfway between A and C, what is AB compared to AC?
✅ AB = ½ AC
In what year was the first Apple iPhone released?
2007
If two lines cross at one point, what do we call them?
✅ Intersecting lines
Part of a line with two endpoints is called what?
✅ Line segment
Which is longer: √73 or √61?
✅ √73
If a point divides a segment in a 7:2 ratio, which segment is longer?
✅ The 7 part
If segments form a ratio 7:2 and total length is 18, what is the longer segment?
✅ 14
Which winter Olympic sport is played with brooms and stones?
Curling