Question

ce and by how much?
12. A rectangular piece of land measures 0.5 km by 0.3 km. Each side is to be fenced with 3 rows of wires.
What is the length of wire needed?
13. Three squares are joined together as shown in the figure. Their sides are 4 cm, 10 cm and 3 cm. Find
perimeter of the figure
4 cm
10 cm
3 cm
14. Fencing the compound of a house cost 34930. If the rate is 785 per metre, find the perimeter of th
compound. If the breadth is 10 m, find its length.
15. In the given figure, BCEF is a square and AABF and ACDE are equilateral triangles. Find the perime
of the figure ABCDEF.
B 6 cm C
F
E
2
AREA
We have learnt that a plane figure with its interior is called the region enclosed by the plane figu
The measurement of the region enclosed by a plane figure is called the area of the plane figure.
The amount of surface enclosed by a plane figure is called its area.
The area of a shape is defined as the number of unit squares that cover a closed figure.
Ve consider a square whose side is 1 cm.
s measure is 1 cm x 1 cm or 1
sq. cm.​

Answer 1

Answer:

find its length.

15. In the given figure, BCEF is a square and AABF and ACDE are equilateral triangles. Find the perime

of the figure ABCDEF.

B 6 cm C

F

Answer 2

Answer:

Step-by-step explanation:

12. Length (L) -.0.5km

Breadth (b) -0.3km

Perimeter= 2(l+b)

=1.6km

3 times= 3× 1.6=4.8km

13. See the attachment for this answer

14. Cost- 34930

Cost per metre- 785

Perimeter- 34930÷785

=44.49m

Perimeter= 2(L+B)

44.49=2(L+B)

Length= 12.24m