Question

the area of the entire figure below is 1 square unit. how can we calculate the area of the striped rectangle? choose 1 answer: a (\frac{1}{4} \times \frac{1}{20}) b (\frac{1}{20} \times \frac{1}{20}) c (\frac{1}{4} \times \frac{1}{5})

Explanation:

Step1: Count total grid cells

The figure has $5$ rows and $4$ columns, so total cells: $5\times4=20$.

Step2: Identify striped cell's fractions

The striped cell is in 1 of 4 columns ($\frac{1}{4}$) and 1 of 5 rows ($\frac{1}{5}$).

Step3: Calculate area via fractions

Area = column fraction $\times$ row fraction

Answer:

C. $\frac{1}{4} \times \frac{1}{5}$