48% de 8,4===============
1 answer:
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Answer:
19.72 cm²
Step-by-step explanation:
A solid circular cylinder has a base radius 5 cm and a height 12.5 cm.
The volume of cylinder is given by :
When r = 5.05, new volum becomes,
Increase in area = 1000.97 - 981.25 = 19.72 cm²
So, the increase in surface area of the cylinder is equal to 19.72 cm².
1+13/15÷1+2/5
= 28/15÷7/5
= 28/15×5/7
= 4/3
The answer is 4/3.
