The area of the base of a rectangular pyramid is 85.4 cm². If the area of each triangular face along the length and breadth is 28.5 cm² and 23.2 cm² respectively, find the total surface area of the pyramid.

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step-by-step explanation:

yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

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