please answer it fast
Attachments:
Answers
Answered by
9
Formula of total surface area of cube
=6 ×SIDE^2
Formula of lateral surface area of cube
= 4× SIDE^2
1) 8 M
TSA of cube =6×8^2
=384m
LSA of cube =4×21^2
=256 cm
2)21 cm
TSA of cube= 6×21^2
=2646 cm
LSA of cube=4×21^2
=1764 cm
3) 7.5 cm
TSA of cube =6×7.5^2
=337.5
LSA of cube=4×7.5^2
=225
___________________________________
Similar questions