Final answer:
The area of a rectangle with dimensions of 10 cm by 7 cm is 70 cm². The formula used is Area = length × width, and so the answer is Option A) 70 cm².
Step-by-step explanation:
The question asks us to find the area of a rectangle with given dimensions. The area of a rectangle is calculated by multiplying the length by the width. Using the formula Area = length × width, we can find the area for the given dimensions. For a rectangle with a length of 10 cm and a width of 7 cm, the area would be:
Area = 10 cm × 7 cm = 70 cm²
The correct answer to the question is Option A) 70 cm². This is because the units of area are always in square units, which is indicated by the exponent 2, as in cm². Therefore, we can explain that neither 17 cm² (Option B) nor the linear units of cm (Options C and D) would be correct for the area of a rectangle.