Question

MCQS :

if the lateral surface area of a cube is 1600cm^2 , then its edges is
(a) 15cm
(b) 18cm
(c) 20cm
(d) 25cm

Answer 1

18cm the edge of cube

Answer 2

LSA of cube = 1600 cm²
⇒4a² = 1600
⇒ a² = 1600/4=400
⇒ a = √400 = 20cm

so its edge is 20cm

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