JAMB Mathematics 2012 Paper

Concept:The volume of a cuboid is found by multiplying its length, breadth, and height together.Explanation:The formula for the volume is $$V = l \times b \times h.$$From the question, $l = 0.76\,\text{cm}$, $b = 2.6\,\text{cm}$, and $h = 0.82\,\text{cm}$.Substitute these values into the formula: $$V = 0.76 \times 2.6 \times 0.82\,\text{cm}^3.$$First, calculate $0.76 \times 2.6 = 1.976$.Then multiply by the height: $1.976 \times 0.82 = 1.62032$.Therefore, the volume is $1.62032\,\text{cm}^3$.Rounded to two decimal places, this gives $1.62\,\text{cm}^3$.Since the unit is cubic centimeters, the volume is correctly expressed as $\text{cm}^3$.Answer:The correct option is D. $1.62\,\text{cm}^3$.