Find the perimeter of each of the following figures :
Solution and Explanation
(a) \(\text{Perimeter} = \text{Sum of all the sides }= 4 \;cm + 2 \;cm + 1 \;cm + 5 \;cm \)
\(=12 \;cm\)
(b) \(\text{Perimeter} = \text{Sum of all the sides} = 23 \;cm + 35\; cm + 40 \;cm + 35 \;cm \)
\(= 133\; cm\)
(c) \(\text{Perimeter} = \text{Sum of all the sides }= 15 \;cm + 15\; cm + 15 \;cm + 15 \;cm \)
\(= 60 \;cm\)
(d)\(\text{ Perimeter} = \text{Sum of all the sides }= 4 \;cm + 4 \;cm + 4 \;cm + 4 \;cm + 4 \;cm \)
\(= 20 \;cm\)
(e) \(\text{Perimeter} = \text{Sum of all the sides} \)
\(\\=1 \;cm + 4 \;cm + 0.5\; cm + 2.5\; cm + 2.5\; cm + 0.5\; cm + 4 \;cm = 15 \;cm\)
(f) \(\text{Perimeter} = \text{Sum of all the sides}\)
\(= 4 \;cm + 1 \;cm + 3 \;cm + 2\; cm + 3 \;cm + 4\; cm + 1 \;cm + 3\; cm + 2 \;cm + 3 \;cm + 4 \;cm + 1 \;cm + 3 \;cm + 2 \;cm + 3 \;cm + 4 \;cm + 1 \;cm + 3 \;cm + 2 \;cm + 3 \;cm \)
\(= 52 \;cm\)
Top Questions on Perimeter
- Perimeter of a square is same as perimeter of a rectangle. If sides of rectangle are in the ratio 17:11, then find the ratio in the areas of the square and the rectangle.
- The height of a room is 40% of semi-perimeter of the floor. Akshay wanted to put wall paper on the walls of his room. It cost ₹5,200 to put 50 cm wide wall paper at the rate of ₹40/m leaving an area of 15 m2 for doors and windows. Height of room (in m) is:
- The area of a rhombus is 120 cm2 and length of its one diagonal is 24 cm. Find the perimeter of the rhombus (in cm).
- In the figure, AP=12 cm, PB = 16 cm. Let \(\pi=3\), then the perimeter of the shaded portion is
- The length of a rectangle is five times the breadth. If the minimum perimeter of the rectangle is 180 cm, then
- KCET
- Mathematics
- Perimeter
Questions Asked in CBSE Class VI exam
- Find the ratio of the following:
(a) 30 minutes to 1.5 hours
(b) 40 cm to 1.5 m
(c) 55 paise to ₹1
(d) 500 mL to 2 litres - Would the bulb glow in the circuit shown in Fig. 9.15?
- CBSE Class VI
- An Electric Circuit
- Rashid spent ₹ 35.75 for Maths book and ₹ 32.60 for Science book. Find the total amount spent by Rashid.
- CBSE Class VI
- Addition of Numbers with Decimals
Complete the drawing shown in Fig. 9.14 to indicate where the free ends of the two wires should be joined to make the bulb glow
- CBSE Class VI
- A Bulb Connected To An Electric Cell
- Draw any line segment, say AB. Take any point C lying in between A and B. Measure the lengths of AB, BC and AC. Is AB = AC + CB? [Note: If A, B, C are any three points on a line, such that AC + CB = AB, then we can be sure that C lies between A and B.]
- CBSE Class VI
- Measuring Line Segments