Surface Area Growing Post

Rectangular Prism:
Here's how to calculate the area of a rectangular prism,

Side 1 L x W = A 8 x 6 = A 46mm² = A
Side 2 L x W = A 6 x 12 = A 72mm² = A
Side 3 L x W = A 8 x 12 = A 96mm² = A

TSA= 12mm²+12mm²+72mm²+72mm²+96mm²+96mm² = 360mm²

Triangular Prism:
Here's how to calculate the area of a triangular prism,

B x H ÷ 2 = A
230 x 140 ÷ 2 = A
32200 ÷ 2 = A
16100m² = A
L x W = A 230 x 70 = A
16100m² = A

TSA = 16100m²+16100m²+16100m²+16100m² = 64400m²
Cylinder:
Here's how to calculate the area of a cylinder,
r = d÷2 r = 20 ÷ 2 r= 10m
a = ╥ x r x r
a = 3.14 x 10 x 10
a = 314m²
c = ╥d c = 3.14 x 20
c = 62.8m²
a = L x W a = 150 x 62.8
a = 9240m²

TSA = 9240m²+62.8m²+62.8m²= 9545.6m²



REMEMBER TO ALWAYS WRITE YOUR FORMULAS !

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