1
Q
Scalene triangle
A
No sides have the same length
2
Q
Isosceles triangle
A
Two sides have the same length
3
Q
Equilaterale triangle
A
All three have the same length
4
Q
Acute triangle
A
All angles are acute angles
5
Q
Right triangle
A
One angle is a right angle
6
Q
Obtuse triangle
A
One angle is an obtuse angle
7
Q
Trapezoid
A
Exactly one pair of parallel sides
8
Q
Rectangle
A
Four right angles (also parallelogram )
9
Q
Rhombos
A
Four sides of equal length
10
Q
Square
A
Four right angles and four sides of equal length
11
Q
Triangle
A
A 3-sided polygon
12
Q
Perimeter
A
The continuos line forming the boundary of closed geometric figures
13
Q
Area
A
The amount of boundary of a flat (2-demonsional) object such as triangle or circle
14
Q
Circumference
A
Distance around a circle
Math 7th Grade
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