PERIMETER AND AREA OF PLANE FIGURE
I. Choose the correct option.
1.Perimeter of a square=
a)4×side
b)2×side
c)3×side
2.Perimeter of a triangle=
a)s1+s2
b)s1+s2+s3
d)4⁄2×side
c)s1+s2/2
d)s1+s2/2
3.Perimeter of a rectangle=
a) 2(length +breadth)
b) 2(length ×breadth)
- breadth)
4.Area of a square=
a) (side)3
b) side ×side
5.Area of circle=
a) r3
b) r/2
c)(side)½
c) r2/2
6.Circumference of a circle=
a) d
b)2r/4
c) r
7.Area of rectangle =
a) length× breadth
+ breadth
c) 2(length÷ breadth)
d) 2(length
d) side× side × side
d) r2
d) r/2
b)length × 2 × breadth
c)2 ×length × breadth
8.Perimeter of a parallelogram=
a)2(sum of two sides) b)2(sum of two adjacent sides)
sides) d) 2(sum of two angles)
d) length
c) 3(sum of two adjacent
II. Solve the following.(2M)
9.The side of a square flower bed is 2m. it is enlarge digging strip 0.5m wide all
around it. Find
a) area of enlarged flower bed.
b)increase in area of flower bed.
10.Find the perimeter of following figures.
a)
b)
11.Find the area of a right triangle with base as 6cm and hypotenuse as 10cm.
12.Find the perimeter of an equilateral triangle of side 13.8m.
13.The perimeter of a square is 20cm2, find its area?
14.Find height of a trapezium of its area is 156cm2 and sum of parallel sides is 39m.
15.Divide each of the following polygons in to one trapezium and two triangles.
III. Solve the following.(3M)
16.The perimeter of a square is 20cm2 find its area?
17.Find the altitude if
a) In a parallelogram, area=132cm2, and base = 11cm
b) in a triangle, are = 132cm2, and base = 11cm
18.Find the area of a shaded portion in the following figures.
19.The length of a rectangular field is thrice its breadth. If the area of field is 7500m2,
find the cost of fencing the field at the rate of Rs 10. Per meter.
20.Find the perimeter of the following figures
a)
b)
IV. Solve the following.(4M)
21.The length of the seconds hand of a wall clock is 7cm.
a)Find the distance covered by tip of the seconds hand in 10minutes
b)Find the area swept by the seconds hand in 10minutes.
22.The base and height of a parallelogram field is in the ratio 5:6 .its area is 1470
square units. Find the base and height of the parallelogram.
23.Find the area of a quadrilateral ABCD given in the adjoining figure.
24.Find the cost of painting the wall shown below at the cost of Rs 15 per m2
25.The floor of a hall is 20m long and 15m wide find the number of tiles required to
cover the floor if the dimension of one file is 20cm×10cm
26.The area of a trapezium is 110cm2 and its height is 10cm. if one of the parallel
sides is longer than the other by 8cm, find the two parallel sides.
27.In quadrilateral ABCD, BC=CD, AB//DC and AD AB find the area of the
quadrilateral ABCD.
28.Find the diagonals of a rhombus whose area is 507m2 if the diagonals are in the
ratio 2:3
Find the area of shaded portions in the following figures.
29. The length of a rectangular field is thrice its breadth. If the area of field is 7500m,
find the cost of fencing the field at the rate of Rs 10/- metre.
30. Find the area of the following figures.