Exercise 1.1d
Find the perimeter of the
following figures.
1) Perimeter = Sum
of all sides = 5 + 3 + 6 + 8 = 22 cm
Perimeter = 22 cm
2) Perimeter = Sum
of all sides = 7 + 2 + 5 + 10 = 24 cm
Perimeter = 24 cm
3) Perimeter = Sum
of all sides = 4 + 7 + 4 + 7 = 22 cm
Perimeter = 22 cm
4) Perimeter = Sum
of all sides = 11 + 11 + 11 + 11 = 44cm
Perimeter = 44 cm
5) Perimeter = Sum
of all sides = 5 + 5 + 10 + 10 = 30cm
Perimeter = 30cm
Answer the following Questions.
1. A side of a square−shaped
sandbox in Gandhi Park measures 30 cm. Determine the perimeter of the sandbox.
Side of a square shaped sand box = 30cm
Perimeter = Sum of all sides
= 30 + 30 + 30 + 30 = 120 cm
Perimeter of the sand box = 120 cm
2. Find the perimeter of a
rectangle, whose sides are 12 cm and 8 cm.
Side of a Rectangle = 12cm and 8cm
Perimeter = Sum of all sides
= 12 + 12 + 8 + 8 = 40 cm
Perimeter of the Rectangle = 40 cm
3. Find the perimeter of the
triangle, whose sides are 13 cm, 5 cm and 14 cm.
Side of a Triangle = 13cm, 15cm and 14cm
Perimeter = Sum of all sides
= 13 + 5 + 14 = 32cm
Perimeter of the Triangle= 32 cm
4. The adjacent sides of a
parallelogram are 6 cm and 7 cm. What is the perimeter of the parallelogram?
Side of a Parallelogram = 6cm and 7cm
Perimeter = Sum of all sides
= 6 + 6 + 7 + 7 = 26 cm
Perimeter of the Parallelogram = 26 cm
5. The sides of a trapezoid measures
8 cm, 7 cm, 4 cm and 5 cm respectively. What is the perimeter of the trapezoid?
Side of a Trapezoid = 8cm, 7cm, 4cm and 5cm
Perimeter = Sum of all sides
= 8 + 7 + 4 + 5 = 24 cm
Perimeter of the Trapezoid = 24 cm
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