To find the area of a rhombus (which is a type of parallelogram), you use the formula:
Area = base × height
You just need to multiply the length of the bottom side (base) by the vertical height ($h$). The slanted side length is extra information that we don't need for this specific calculation.
Here are the step-by-step calculations for each problem on the worksheet, going from left to right, top to bottom:
Row 1:
1.
Base = 4 cm, Height = 3.5 cm
* $4 \times 3.5 = 14$
* Area:
14 cm²
2.
Base = 6 cm, Height = 5 cm
* $6 \times 5 = 30$
* Area:
30 cm²
3.
Base = 9 cm, Height = 8 cm
* $9 \times 8 = 72$
* Area:
72 cm²
Row 2:
4.
Base = 7 cm, Height = 6 cm
* $7 \times 6 = 42$
* Area:
42 cm²
5.
Base = 4 cm, Height = 4.5 cm
* $4 \times 4.5 = 18$
* Area:
18 cm²
6.
Base = 2 cm, Height = 2.5 cm
* $2 \times 2.5 = 5$
* Area:
5 cm²
Row 3:
7.
Base = 6.5 cm, Height = 6 cm
* $6.5 \times 6 = 39$
* Area:
39 cm²
8.
Base = 8 cm, Height = 7 cm
* $8 \times 7 = 56$
* Area:
56 cm²
9.
Base = 8 cm, Height = 7.5 cm
* $8 \times 7.5 = 60$
* Area:
60 cm²
Final Answer:
Row 1: 14 cm², 30 cm², 72 cm²
Row 2: 42 cm², 18 cm², 5 cm²
Row 3: 39 cm², 56 cm², 60 cm²
Parent Tip: Review the logic above to help your child master the concept of area of a rhombus worksheet.
