To solve the problem, we need to calculate the area of each parallelogram. The formula for the area of a parallelogram is:
\[
\text{Area} = \text{base} \times \text{height}
\]
Let's go through each part step by step.
---
Part (a)
-
Base: 11 cm
-
Height: 9 cm
Using the formula:
\[
\text{Area} = \text{base} \times \text{height} = 11 \, \text{cm} \times 9 \, \text{cm} = 99 \, \text{cm}^2
\]
So, the area of the parallelogram in part (a) is:
\[
\boxed{99 \, \text{cm}^2}
\]
---
Part (b)
-
Base: 98 mm
-
Height: 36 mm
Using the formula:
\[
\text{Area} = \text{base} \times \text{height} = 98 \, \text{mm} \times 36 \, \text{mm} = 3528 \, \text{mm}^2
\]
So, the area of the parallelogram in part (b) is:
\[
\boxed{3528 \, \text{mm}^2}
\]
---
Part (c)
-
Base: 20 cm
-
Height: 3 cm
Using the formula:
\[
\text{Area} = \text{base} \times \text{height} = 20 \, \text{cm} \times 3 \, \text{cm} = 60 \, \text{cm}^2
\]
So, the area of the parallelogram in part (c) is:
\[
\boxed{60 \, \text{cm}^2}
\]
---
Final Answers
\[
\boxed{99 \, \text{cm}^2, 3528 \, \text{mm}^2, 60 \, \text{cm}^2}
\]
Parent Tip: Review the logic above to help your child master the concept of area of parallelogram worksheet.
