The sides of a rectangle are measured to have lengths 0.234 cm and 12.78 cm.Find the area of the rectangle using the correct number of significant figures. A)2.99052 cm² B)2.9905 cm² C)2.991 cm² D)2.990 cm² E)2.99 cm²

Question

Quizplus · Accepted Answer

The area of the rectangle is calculated by multiplying the lengths of its sides: 0.234 cm * 12.78 cm = 2.99052 cm². However, the answer must be reported with the correct number of significant figures, which is determined by the measurement with the least number of significant figures. Since 0.234 has three significant figures, the area should also be reported with three significant figures, making it 2.99 cm².

The Sides of a Rectangle Are Measured to Have Lengths