find the total surface area of a cylinder is r is equal to 1.4 cm height 2.1 CM
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Answer:
30.8cm²
Step-by-step explanation:
total surface area of cylinder is πr²+πr²+2πrh = 2πr(r+h)= 2(22/7)(1.4)(1.4+2.1)= 44/7(1.4×3.5)= 30.8 cm²
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