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answer of sixth question is 3
sanjita98:
I need full explanation.... but it's okay! I have it's answer in book's last page but I don't know how to solve this.
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q 3 .
tsa of cube =6a2
54 =6a2
54/6 = a2
9= a2
a = 3 .
thus ,
the length of its side is 3 cm.
q 4 .
surface area = 6a2
= 6 ×( 27)^2
= 4374 cm2.
I hope it help you
tsa of cube =6a2
54 =6a2
54/6 = a2
9= a2
a = 3 .
thus ,
the length of its side is 3 cm.
q 4 .
surface area = 6a2
= 6 ×( 27)^2
= 4374 cm2.
I hope it help you
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