Historical Figures
Quick-solve
Figures
3D
Concepts
45
The father of geometry
What is Euclid?
45
sin(pi/6)
What is 1/2?
45
The equation for the circumference of a circle
What is 2πr?
45
The minimum number of non-collinear points needed to make up a plane?
What is 3?
45
The lines that intersect a circle once, and the planes that intersect a sphere once.
What is tangent?
90
This guy developed the relationship between cevians and the side lengths they cuts.
What is Ceva?
90
The diagonals of a rhombus are 10 and 24. Find the area.
What is 120?
90
It connects between two points.
What is line segment?
90
The formula for this: 1/3 x2h
What is volume of a regular square pyramid?
90
The making of figures using only a straightedge and compass
What is Construction?
180
This guy formulated the most iconic mathematical identity/theorem to be performed on a right triangle.
What is Pythagoras?
180
The inradius of a 5-12-13 triangle.
What is 2?
180
The locus of points that are equidistant to a point.
What is circle?
180
A figure has 15 edges and 8 faces. How many vertices are there?
What is 9?
180
The process of partitioning a region into 1x1 squares and then counting the amount of the squares.
What is area?
270
The guy that created a theorem which gives a relationship between chords in a cyclic quadrilateral.
What is Ptolemy?
270
Line A and B (y= 3x +7) are perpendicular at (-3,-2). Find the y-intercept of line A.
What is -3?
270
The figure that has its diagonals bisect each other.
What is parallelogram?
270
This figure has two parallel polygonal tops.
What is prism?
270
A median, altitude, and angle bisector is on the same line.
What is isosceles triangle?
360
The father of modern-day analytic (using algebraic methods to solve) geometry
What is Decartes?
360
Read this proof!
- Step 1: Let a=b.
- Step 2: Then
, - Step 3:
, - Step 4:
, - Step 5:
, - Step 6: and
. - Step 7: This can be written as
, - Step 8: and cancelling the
from both sides gives 1=2.
What did they do wrong, and what step did they go wrong?
(both answers must be present for credit)
What is Step 8, and dividing by 0?
360
The locus of points equidistant to two intersecting line segment.
What is angle bisector?
360
Two lines that are not parallel and do not intersect
What is skew lines?
360
The property of two triangles with equal angles
What is AA-similarity?