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Level 86

Area of Quadrilaterals


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Parallelogram
p=s+s+b+b
Rectangle
A=lw
Square
P=s+s+s+s
Rhombus
a parallelogram with four equal sides and equal opposite angles.
Trapezoid
P=s1+s2+b1+b2
kite
A quadrilateral with two distinct pairs of equal adjacent sides.
triangle
P=a+b+c
Rectangle
lw or bh
Parrellelogram
bh
360
Sum of Exterior Angle
(n-2)180/n
one interior angle of regular polygon
48 unit squared
For a kite the two diagnols are 8 and 12 what is the answer for area
Rhombus and kite
Bxh/2 plus bxh/2
Rhombus and kite formula if no diagnols
Base times height divided by 2 + base times height divided by 2
Trapozoid
Base1 plus base 2 divided by 2 times height
A rhombus
All sides are equal the diagonals make 90 degree angles and bisect the inner angles
Kites
Adjacent angles are congruent
Kite diagnols are
Diagnols of a kite are perpendicular
s*s
Area of a Square
bh
Area of a Rectangle
bh
Area of a Parallelogram
1/2bh
Area of a Triangle
1/2h(b1+b2)
Area of a Trapezoid
1/2d1d2
Area of a Rhombus
Rectangle
A=bh
Circle
in a plane, the set of all points equidistant from a given point
45-45-90 Triangle
Hypotenuse=leg radical 2
30-60-90 Triangle
Hypotenuse=shortest leg * 2