CBSE Questions for Class 7 Maths Perimeter And Area Quiz 3 - MCQExams.com

In which figure circumference of the circle is shown in green?

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  • figure 2
  • figure 3
  • figure 1
  • figure 4
The area of triangle is equal to the area of a rectangle whose length and breadth are $$20\ cm$$ and $$15\ cm$$ respectively. Calculate the height of the triangle if its base measures $$30\ cm$$.
  • $$20\ cm$$.
  • $$30\ cm$$.
  • $$40\ cm$$.
  • None of these
$$80$$ students of the same height stand with both hands stretched all along the sides of a rectangular garden, each student covering a length of $$1.75$$ m. Then the perimeter of the garden is
  • $$1400$$ m
  • $$140$$ m
  • $$14$$ m
  • $$1400$$ km
Which figure has an area of $$20$$sq. units and a perimeter of $$18$$ units?
The given figure is made up of two rectangles. Find its total area.
722855_4d56721953b6408096119b2db8831a40.png
  • $$144cm^2$$
  • $$216cm^2$$
  • $$240cm^2$$
  • $$300cm^2$$
If the outer and inner radii of a ring are $$10$$ cm and $$8$$ cm, then its area is nearly
  • $$113.443$$ sq. cm
  • $$113.343$$ sq. cm
  • $$113.243$$ sq. cm
  • $$113.143$$ sq. cm
A circular park, 42 m in diameter, has a path 3.5 m wide running around it on the outside. Find the cost of gravelling the path at Rs. 4 per $$m^2$$.
  • $$Rs. 2002$$
  • $$Rs. 1652$$
  • $$Rs. 1672$$
  • $$Rs. 2048$$
Circumference $$C$$ of the circular ring is:
where $$C_{outer}$$ and $$C_{inner}$$ denotes the circumference of outer and inner circles respectively.
  • $$C_{outer}+C_{inner}$$
  • $$C_{outer}-C_{inner}$$
  • $$C_{outer}C_{inner}$$
  • $$2(C_{outer}+C_{inner})$$
Perimeter of a triangle is the sum of the lengths of all the _____ sides.
  • $$2$$
  • $$4$$
  • $$5$$
  • none of these
The shaded area enclosed between the two rings is called _____.
934679_5dace522b3354f93bfb616fff3922d0e.png
  • Circle
  • Spherical shell
  • Circular ring
  • Sphere
Find the area of the circular park of whose radius is $$4.5 m$$.
  • $$33.85\,{{m}^{2}} $$
  • $$53.55\,{{m}^{2}} $$
  • $$43.85\,{{m}^{2}} $$
  • $$63.585\,{{m}^{2}} $$
A circular ring is 5 cm wide. The difference of outer and inner radius is 
  • $$5\:cm$$
  • $$2.5\:cm$$
  • $$10\:cm$$
  • none of these
If the circumference of a circle is $$352$$ metres, then its area (approx)in $$\text{ m }^{ 2 }$$ is
  • $$9859$$
  • $$8956$$
  • $$6589$$
  • $$5986$$
Find the circumference of the circle with the following radius : 10 cm
  • $$20 \pi \ cm$$
  • $$10 \pi \ cm$$
  • $$30 \pi \ cm$$
  • None of these
The area of circle with radius $$24\ cm$$ is 
  • $$576\pi $$
  • $$24\pi$$
  • $$12\pi$$
  • $$48\pi$$
Find the radius of circle if its area is $$125\pi cm^2$$
  • $$5\sqrt 5cm$$
  • $$3\sqrt 3cm$$ 
  • $$2\sqrt 2cm$$
  • none
If the radius of a circle is tripled, The area becomes
  • $$9\ times$$
  • $$3\ times$$
  • $$remains\ the\ same$$
  • $$\sqrt{3}\ times$$
Circumference of a circle disc is $$88\, cm$$. Its radius is.
  • $$8\, cm$$
  • $$11\, cm$$
  • $$14\, cm$$
  • $$44\, cm$$
 If $$1m^2 = x\, mm^2$$, then the value of x is.
  • $$1000 $$
  • $$10000$$
  • $$100000 $$
  • $$1000000 $$
Area of a circle with diameter $$m$$, radius $$n$$ and circumference $$p$$ is
  • $$2 \pi \, n$$
  • $$\pi \, m^2$$
  • $$\pi \, p^2$$
  • $$\pi \, n^2$$
Circumference of a circle of diameter  $$5 \, cm$$ is
  • $$5 \, cm$$
  • $$ 31.4 \, cm$$
  • $$15.7 \, cm$$
  • $$1.57 \, cm$$
State true/false:
To find the cost of a frame of a picture, we need to find the perimeter of the picture.
  • True
  • False
Write true or false and justify your answer. The area of $$\Delta ABC$$ is $$8\ cm^{2}$$ in which $$AB=AC=4\ cm$$ and $$\angle A = 90^{\circ}$$
  • True
  • False
State true or false.
The area of a triangle with base $$4\ cm$$ and height $$6\ cm$$ is $$24\ cm^{2}$$.
  • True
  • False
A circular park is surrounded by a road $$21\ m$$ wide. If the radius of the park is $$105\ m$$, find the area of the road.
  • $$13860\ m^{2}$$
  • $$30492\ m^{2}$$
  • $$7623\ m^{2}$$
  • $$15246\ m^{2}$$
The perimeter of a quadrant of a circle of radius $$r$$ is:
  • $$\dfrac{\pi r}{2}$$
  • $$2\pi r$$
  • $$\dfrac{r}{2}\left [ \pi +4\right ]$$
  • $$2\pi r+\dfrac{r}{2}$$
State whether true or false.
The radii of two circles are $$19$$ cm and $$9$$ cm respectively. The radius of the circle which has the circumference equal to the sum of the circumferences of the two circles is $$26$$ cm.
  • True
  • False
The base and the corresponding altitude of a parallelogram are $$10\: cm$$ and $$3.5\: cm$$, respectively. The area of the parallelogram is
  • $$30\: cm^2$$
  • $$35\: cm^2$$
  • $$70\: cm^2$$
  • $$ 17.5\:cm^2$$
If the sum of the areas of two circles with radii $$R_1$$ and $$R_2$$ is equal to the area of a circle of radius R, then
  • $$R_{1}+R_{2}=R$$
  • $$R_{1}^{2}+R_{2}^{2}=R^{2}$$
  • $$R_{1}+R_{2} < R$$
  • $$R_{1}^{2}+R_{2}^{2} < R^{2}$$
State true or false.
If the circumference of the circle is $$88$$ cm, then its radius is $$14 $$ cm.
  • True
  • False
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