I'll solve this problem by calculating the perimeter of each triangle shown in the image. The perimeter of a triangle is the sum of the lengths of all its sides.
Let me go through each triangle one by one:
1. First triangle (top left): sides are 4cm, 4.5cm, and 2cm
Perimeter = 4 + 4.5 + 2 = 10.5cm
2. Second triangle (top right): sides are 3cm, 6.5cm, and 6cm
Perimeter = 3 + 6.5 + 6 = 15.5cm
3. Third triangle (middle left): sides are 3cm, 4.2cm, and 3cm
Perimeter = 3 + 4.2 + 3 = 10.2cm
4. Fourth triangle (middle right): sides are 6cm, 6.3cm, and 2cm
Perimeter = 6 + 6.3 + 2 = 14.3cm
5. Fifth triangle (bottom left): sides are 2cm, 6.3cm, and 6cm
Perimeter = 2 + 6.3 + 6 = 14.3cm
6. Sixth triangle (bottom right): sides are 6cm, 6.4cm, and 5cm
Perimeter = 6 + 6.4 + 5 = 17.4cm
The answers for the blanks from top to bottom, left to right are:
- 10.5cm
- 15.5cm
- 10.2cm
- 14.3cm
- 14.3cm
- 17.4cm
Parent Tip: Review the logic above to help your child master the concept of triangle area and perimeter worksheet.
