Triangles
formulas
imagine that
Who am I?
Internationally known
100
How many degrees are in a triangle?
180
100
The area of a triangle
1/2*base*height
100
angles on a straight line add up to
180°
100
While at least 8 think I'm lazy, I go on and on.
infinity symbol ∞
100
All momentum must cease at the sight of me
octagon
200
90
200
area is defined by length times width for this shape
Rectangle
200
4 triangles, 3 meeting at each vertex
tetrahedron
200
All things being equal, I represent order, trust, stability, and being grounded.
Square
200
Give right of way and stop if necessary if any other traffic is in, or closely approaching, the intersection.
Triangle
300
The sum of the three interior angles of a triangle
180°
300
The area is defined by multiplying one side by another
Square
300
a line segment having an angle of 360°
Circle
300
Used to represent justice, mercy, and wisdom
pentagram
300
typically yellow or orange, I warn of dangerous or unusual conditions ahead, such as a curve, turn, dip or side road.
Diamond
400
True or false: Supplementary angles always add up to 180
True
400
My area is determined by multiplying pi times radius squared
circle
400
Regularly, I have 5 edges, 5 vertices and my perimeter is 5*side. My internal angles are 108°, the sum of all 5 is 540°
Pentagon
400
Announcing school zones, I show a black silhouette of a schoolboy and a schoolgirl.
pentagon
500
a triangle with one interior angle measuring more than 90°.
Obtuse triangle
500
150
500
Bird's-foot and yellow, radiation, or a fan of Disney Land at least 60 degrees of separation inspiration come from me
Trefoil
500
Usually green with white writing, I mark the mile.
Rectangle