English
Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 7

Find the area of the dining table whose diameter is 105 cm - Mathematics

Advertisements
Advertisements

Question

Find the area of the dining table whose diameter is 105 cm

Sum

Solution

Diameter of the dinig table (d) = 105 cm

∴ Radius r = `"d"/2`

= `105/2` cm

Area of the circle = πr2 

= `22/7 xx 105/2 xx 105/2`

= 8662.5 sq.cm

Area of the dinning table = 8662.5 cm 

shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Measurements - Exercise 2.2 [Page 33]

APPEARS IN

Samacheer Kalvi Mathematics - Term 2 [English] Class 7 TN Board
Chapter 2 Measurements
Exercise 2.2 | Q 1 | Page 33

RELATED QUESTIONS

Find the length of the hypotenuse of an isosceles right-angled triangle whose area is `200^2` cm . Also, find its perimeter


Find the area and perimeter of an isosceles right angled triangle, each of whose equal sides measure 10cm. 


In the following figure, from a rectangular region ABCD with AB = 20 cm, a right triangle AED with AE = 9 cm and DE = 12 cm, is cut off. On the other end, taking BC as diameter, a semicircle is added on outside' the region. Find the area of the shaded region. [Use π =]`22/7` [CBSE 2014]

 


From a thin metallic piece, in the shape of a trapezium ABCD, in which AB || CD and ∠BCD = 90°, a quarter circle BEFC is removed (in the following figure). Given AB = BC = 3.5 cm and DE = 2 cm, calculate the area of the remaining piece of the metal sheet.


The ratio of the outer and inner perimeters of a circular path is 23 : 22. If the path is 5 metres wide, the diameter of the inner circle is 


In the given figure, PQRS represents a flower bed. If OP = 21 m and OR = 14 m, find the area of the flower bed.


Find the area of the major segment APB of a circle of radius 35 cm and ∠AOB = 90°, as shown in the given figure.


A horse is tethered to one corner of a field which is in the shape of an equilateral triangle of side 12 m. If the length of the rope is 7 m, find the area of the field which the horse cannot graze. Write the answer correct to 2 places of decimal.


A chord of a circle of radius 10 cm subtends a right angle at the centre. The area of the minor segments (given, π = 3.14) is


The length of the minute hand of a clock is 14 cm. The area swept by the minute hand in 5 minutes is ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×