Perimeter of Irregular Shapes

Q.

Avneet buys $9$ square paving slabs, each with a side $\frac{1}{2}m$. He lays them in the form of a square.

(a) What is the perimeter of his arrangement?

(b) Shari does not like his arrangement. She gets him to lay them out like a cross. What is the perimeter of her arrangement?

(c) Which has greater perimeter?

(d) Avneet wonders, if there is a way of getting an even greater perimeter. Can you find a way of doing this? (The paving slabs must meet along complete edges, i.e., they cannot be broken.)

Q.

Question 1(b)

Find the perimeter of the figure:

Q. If the sum of two sides of a triangle is 21 cm and its perimeter is 35 cm, then what is the length of the third side?

1. 6 cm
2. 5 cm
3. 14 cm
4. 7 cm

Q. If two equilateral triangles each of side length 6 m are joined to form a polygon, then the perimeter of the figure so formed is ____ m.

1. 6
2. 24
3. 36
4. 18

Q.

Question 1(f)

Find the perimeter of the figure:

Q. Find the perimeter of the figure in cm.

1. 68.3

Q.

Question 1(e)

Find the perimeter of the figure:

Q.

Find the perimeter of the figure:

Q. Find the perimeter of the given shape.

1. $17m$
2. $15m$
3. $16m$
4. $18m$

Q. Four regular hexagons are drawn so as to form the design as shown in figure. If the perimeter of the design is 144 cm, find the length of each side of the hexagon.

1. 18 cm
2. 12 cm
3. None of the above
4. 8 cm

Q.

What is the perimeter of the given polygon (in centimetres)?

1. 650 cm
2. 550 cm
3. 600 cm
4. 750 cm

Q. Find the perimeter of the figure in cm.

1. 68.3

Q. What is perimeter of a closed figure?

1. Distance around the closed figure.
2. Space occupied by the closed figure.
3. Half the distance around the closed figure.
4. Half the space occupied by the closed figure.

Q. Raghu walks around a park whose dimensions are given in the figure. How much distance will he cover in two rounds?

1. 298 m
2. 328 m
3. 656 m
4. 228 m

Q.

Find the perimeter of the irregular shape given below.

1. 32 cm

2. 34 cm

3. 42 cm

4. 40 cm

Q.

Question 1(c)

Find the perimeter of the figure:

Q.

Meera went to a rectangular park $140m$ long and $90m$ wide. She took $5$ complete rounds on its boundary. What is the distance covered by her?

Q.

Calculate the perimeter of the given figure.

1. 35.6 cm
2. 45 cm
3. 39 cm
4. 42.8 cm

Q. What is the cost of putting a wire around a rectangle shaped box of length 50 cm and breadth 30 cm, given that 1 cm of wire costs ₹20?

1. ₹1500
2. ₹3200
3. ₹1600
4. ₹3000

Q. What is the length of the wooden strip required to frame a photograph of length and breadth 32 cm and 21 cm respectively?

Q.

Which of the following expressions gives the perimeter of the given shape?

1. AB + BC + CD + DE + EF + FG + GH + HA
2. AB + BC + CD + DE + EF + FG + GH
3. AC + CE + EG + GA
4. BD + DF + FH + HB

Q. Find the perimeter of the figure in centimetres.

1. 15

Q. If the lengths of three sides of a triangle are a, b and c, find the perimeter of the triangle.

1. a+b+c
2. 3(a+b+c)
3. 4(a+b+c)
4. 2(a+b+c)

Q. $\frac{7}{11}\times \frac{x}{21}=1$. Find $x$.

Q. The scale of a map is $1:3000000$. What is the actual distance between the two towns if they are $3.5cm$ apart in the map?

Q.

The total cost of fencing the park shown in the Figure is ₹55000. Find the cost of fencing per metre.

Q. What is the perimeter of the given figure?

1. 25 cm
2. 21 dm
3. 2 m 5 dm
4. 2 m 50 dm

Q. Find the perimeter of the following figure.

Q. Perimeter of the figure given below is 64 cm. Find the length of the side marked as 'x' by using the given perimeter.

1. 22 cm
2. 18 cm
3. 42 cm
4. 36 cm

Q. Find the perimeter of the shape given below.[2 Marks]