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CBSE Questions for Class 7 Maths Perimeter And Area Quiz 6 - MCQExams.com

Expenditure incurred in cultivating a square field at the rate of Rs. 170 per hectare is Rs. 680. What would be the cost of fencing the field at the rate of Rs. 3 per meter?
  • Rs. 2400
  • Rs. 3600
  • Rs. 3000
  • Rs. 2000
Front side wall of a house consists of a rectangle of 6 m × 4 m surrounded by a semicircle with base 4 m It has two isosceles triangles make with vertical sides of the rectangle The net area of the wall in sq m is :
271577_4e405c6aff7c430982f40c1b752563d0.png
  • 4(15+π)
  • 4(18+π)
  • 4(24+π)
  • 64+4π
One side of the square is 4000 meters long. Find is its area in km2
  • 1.6 km2
  • 16 km2
  • 160 km2
  • 1600 km2
Area _____ increases if we increase the perimeter of square or rectangle.
  • always
  • never
  • may or may not be
  • none of these
Convert:
58.23 cm2= ____ mm2
  • 5.823
  • 582.3
  • 5823
  • 58230
What is the area of a figure formed by a square of side 8 cm and an isosceles triangle with the base as one side of the square and the other equal sides as 5 cm?
272004_e723675202454100823ba9193028db74.png
  • 70 cm2
  • 76 cm2
  • 82 cm2
  • 64 cm2
The perimeter of an equilateral triangle and a square are same then areaofΔareaof =
  • 43
  • 1
  • 1.5
  • <1
A square and a rectangular field with measurements as given in the following figure have the same perimeter. Which field has a larger area?
301206_230cabd74d844293941f558c9087013c.png
  • Square has larger area, square =3600m2.
  • Rectangle has larger area, square =3600m2.
  • Square has larger area, square =1600m2.
  • Square has larger area, square =3800m2.
The radius of a circle is 14m, then the circumference of a circle is
  • 616m
  • 88m
  • 154m
  • none of these
The area of a parallelogram is 120  cm2 and its altitude is 10 cm. The length of the base is
  • 24 cm
  • 12 cm
  • 8 cm
  • 4 cm
If a wire is bent into the shape of a square, the area of the square is 81 sq cm. When the wire is bent into a semicircular shape, what is the area of the semicircle? (π=227)
272668_ced09c5ccf0f43d3b75a838e46ef904b.png
  • 77 cm2
  • 80 cm2
  • 75 cm2
  • 70 cm2
Find the area of the unshaded portion of figure, the shaded portions being semi-circular regions.
302363_4bc11e75f1fb4653990a082c0eef7062.png
  • 100.5m2.
  • 101.5m2.
  • 201.5m2.
  • 101.8m2.
The circumference of a circle is 44m, then the area of the circle is
  • 6084.5m2
  • 276.5m2
  • 154m2
  • 44m2
The area of a circle is 2464m2, then the diameter is
  • 56m
  • 154m
  • 176m
  • none of these
It is given that two scalene triangles are not congruent, then we can conclude that both are always equal in area.
  • True
  • False
The inner diameter of a circular building is 54cm and the base of the circular wall occupies a space of 2464cm2. The thickness of the wall is: 
  • 1cm
  • 2cm
  • 4cm
  • 5cm
ABCD is a square field of side 80m. If EF is perpendicular to DC, find the area of ΔEDC and the area of the shaded portion respectively.
302285_97ac874182ff45d3837fec6fd43b7ba3.png
  • 3200m2,3200m2
  • 3200m2,3500m2
  • 3600m2,3200m2
  • 3200m2,3600m2
Mrs. Kaushik has a square plot with the measurement as shown in the figure. she wants to construct a house in the middle of the plot. A garden is developed around the house. Find the total cost of developing a garden around the house at the rate of Rs.55perm2.
301217_4e8fbb01d3464e0b8c807f13cf486ed7.png
  • Rs.17,875
  • Rs.17,675
  • Rs.12,875
  • Rs.17,825
In figure, AB and CD are two perpendicular diameters of a circle with centre O. If OA=7cm, find the area of the shaded region. [Use π=227]
329954_3af856701c1e4d4ab12822f4a91d0685.png
  • 31.4cm2
  • 42.5cm2
  • 54.2cm2
  • 66.5cm2
If the diameter of a semicircular protractor is 14cm then find its perimeter.
  • 36cm
  • 76cm
  • 112cm
  • 162cm
The area of the shaded portion in the given figure is
321690_20d8d44fc2894fb9b805e6490d0b8b1f.png
  • 7.5π sq.units
  • 6.5π sq.units
  • 5.5π sq.units
  • 4.5π sq.units
Find the area of a circle whose circumference is 22cm.
  • 35.2cm^2
  • 38.5cm^2
  • 41.7cm^2
  • 47.6cm^2
If the radius of circle is \displaystyle \pi , then its area will be:
  • \displaystyle \pi
  • \displaystyle { \pi }^{ 2 }
  • \displaystyle { \pi }^{ 3 }
  • \displaystyle 3\pi
Which of the following has least area?
1946632_cf2e7bb0a0dc4ee99806a98fdcd7464c.jpg
  • A1
  • A2
  • A3
  • None of these
Richa wants to add a rectangular stone in her ring of length 2 cm and breadth 1.5 cm. Find the area of stone in millimetrrs.
  • 0.3 mm^2
  • 3 mm^2
  • 30 mm^2
  • 300 mm^2
The inner circumference of a circular tracks is 220\ m. The track is 7 m wide everywhere. Calculate the cost of putting up a fence along the outer circle at the rate of Rs. 2 per metre. Use \pi=\displaystyle\frac{22}{7}
  • Rs. 947
  • Rs. 726
  • Rs. 612
  • Rs. 528
The radii of two circles are 8cm and 6cm respectively. Find the radius of the circle having its area equal to the sum of the areas of the two circles.
  • 32cm
  • 23cm
  • 15cm
  • 10cm
Abhay made a straight cut through a circular rubber band and then laid the rubber band flat, as shown in the figure.
Which measure corresponds to the length of the cut rubber band ?
313126.png
  • Chord
  • Circumference
  • Diameter
  • Radius
In the figure shown here, BDEC is a rectangle. ABC and DEF are straight lines. The area, in cm^2 , of the whole figure is ______ .
313196_07297c556fa44058b9ec0cfa13015106.png
  • 120
  • 128
  • 136
  • 142
The areas of two concentric circles forming a ring are 154 sq. cm and 616 sq. cm. The breadth of the ring is
  • 21 \ cm
  • 56 \ cm
  • 14 \ cm
  • 7 \ cm
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