SURFACE AREA (3D SHAPES)
Pick a shape • enter dimensions • get surface area
Includes curved surfaces • NO SCROLL
SHAPE
CUB
Choose a shape to show the right fields
ROUNDING
2DP
Result rounding only
LENGTH
A
Enter a number
WIDTH
B
Enter a number
HEIGHT
C
Enter a number
WORKING
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SURFACE AREA
READY
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PAGE 1/2
SHAPE
CUB
Choose a shape to show the right fields
ROUNDING
2DP
Result rounding only
LENGTH
A
Enter a number
WIDTH
B
Enter a number
HEIGHT
C
Enter a number
WORKING
—
—
—
—
—
SURFACE AREA
READY
—
PAGE 1/2
HOW TO USE
1) Choose a SHAPE
2) Enter dimensions
3) Press SOLVE
4) Read working + answer
CUBOID
SA = 2(LW + LH + WH)
Example: L=8,W=5,H=3
SA = 158
CUBE
SA = 6s²
Example: s=4 → 96
CYLINDER
SA = 2πr² + 2πrh
Example: r=4,h=10
SA ≈ 351.86
SPHERE
SA = 4πr²
Example: r=3
SA ≈ 113.10
CONE
SA = πr² + πrl
l = slant height
Example: r=4,l=6.4
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