A solid hemisphere A had a radius of 2.8 cm. a) calculate the total surface area of hemisphere A.
give your answer correct to three significant figures.

a larger solid hemisphere B has a volume which is 125 times the volume of hemisphere A

b) calculate the total surface area of hemisphere B. give your answer correct to 3 significant figures.

answer: the two figures are congruent.

step-by-step explanation: they're congruent because figure efgh is reflected across the x and y axis but it was also rotated.

hope it !

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.