basic plane geometry
if a square has all side be exactly 7 cm what is the area and perimeter
area: 49cm
perimeter: 28cm
what is a 3d shape called
polyhedron
x times 12= what
12x
the four basic math symbols
+ - x /
if a triangle has all three different sides what is the name of it
Scalene
what is the name for a 3d square
cube
3x + (2 times 2)= what
3x + 4
how to calculate density
mass / volume
what is the name for a infinite or zero sided shape
circle
who invented solid geometry
euclid
x3 + 22= 4
what is x
x=-6
how to calculate mass
volume x density
what is the name for a ten sided shape
decagon
if a polyhedron has 10 side what is its name
decahedron
4(2x + 9)= 72
what is x
x= 4.5
who is most famous for discovering gravaty
isaac newton
if a triangle's side lengths are 84 and 26 what is the last sides length
70
what is the name for 2 shapes that have opposite corners and edges
dual polyhedra
(2x) times (2x) = 16
what is x
x = 2
\(3(x - 2) + 5 = 2(x + 4)\)
solve for x
x = 9