(c)
3. If the total surface area of a cube is 486 cm²,
then its lateral surface area
(a) 243 cm
(b) 342 cm
(c) 324 cm
(d) 432 cm
Answers
Answered by
0
Answer:
the answer of this question is 243
Answered by
0
Answer:
option (c) 324 cm
Step-by-step explanation:
TSA = 486 cm^2
6a^2 = 486
a^2 = 486/6
a^2 = 81
a= 9cm.
LSA = 4a^2
= 4(9)^2
= 4 (81)
= 324 cm
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