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Area Calculator
Calculate the area of common geometric shapes
Circle
Rectangle
Triangle
Trapezoid
Ellipse
Regular Polygon
r
Radius:
mm
cm
m
km
in
ft
Calculate Area
w
h
Width:
mm
cm
m
km
in
ft
Height:
Calculate Area
h
b
Base & Height
Three Sides
Base:
mm
cm
m
km
in
ft
Height:
Side a:
mm
cm
m
km
in
ft
Side b:
Side c:
Calculate Area
h
a
b
Top Base (a):
mm
cm
m
km
in
ft
Bottom Base (b):
Height (h):
Calculate Area
a
b
Semi-Major Axis (a):
mm
cm
m
km
in
ft
Semi-Minor Axis (b):
Calculate Area
r
s
Number of Sides:
Side Length:
mm
cm
m
km
in
ft
Calculate Area
Result:
0
cm²
Formula Used:
Step-by-Step Solution: