find total surface area and lateral surface area of a cube. whose edges measures 20 cm.
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Given that l=20cm, b=12cm, h=9cm
∴T.S.A=2(lb+bh+lh)
=2[(20×12)+(12×9)+(20×9)]
=2(240+108+180)
=2×528
∴T.S.A=1056cm
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Answer:
T.S.A. and L.S.A. of Cube are 2400 cm^2 and 1600 cm^2
Step-by-step explanation:
The surface area of a cube = 6a^2
(where a is the length of the side of each edge of the cube.)
= 6 × 20 × 20
= 2400 cm^2
L.S.A. (Lateral Surface Area) of Cube = 4a^2
= 4 × 20 × 20
= 1600 cm^2
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