How Many Square Centimeters Are There in 1 Square Foot $\times$

question 3

Multiple Choice

How many square centimeters are there in 1 square foot (1 in = 2.540 cm) ?

• A) 9.290 \(\times\) 10³ cm²
• B) 929.0 cm²
• C) 9.290 \(\times\) 10⁴ cm²
• D) 92.90 cm²
• E) 9.3 \(\times\) 10² cm²

---

Definitions:

Lubb (S1)

The sound made by the closure of the mitral and tricuspid valves at the beginning of systole, commonly referred to as the "first heart sound."

Dupp (S2)

The sound made by the heart's valves closing in the cardiac cycle, often associated with the splitting or duplication of the second heart sound.

Muscle Fiber Striations

The visible lines seen in skeletal and cardiac muscle fibers, resulting from the arrangement of actin and myosin filaments.

Electrical Junctions

Specialized connections between cells that allow for the direct transfer of ions and small molecules, enabling electrical communication.