Chapter 12 – Areas Related to Circles

A building is in the form of cylinder surmounted by a hemispherical dome. The base diameter of the dome is equal to 3/2 ​of the total height of the building. Find the height of the building if it contains 67 21/1 ​m^3 of air. In the network shown in Figure the potential difference across A [...]

Find the area of the shaded region in given Fig. where arcs drawn with centres A,B,C and D intersect in pairs at mid-points P,Q,R and S of the sides AB,BC,CD and DA, respectively of a square ABCD (Use π=3.14). -q B BC C and D intersect in pairs at mid-points P CD and DA Find [...]

A calf is tied with a rope of length 6m at the corner of the square grassy lawn of side 20m if the length of the rope is increased by 5.5 m find the increase in area of the grassy lawn in witch the calf can graze. Find the area of a sector of a [...]

With the vertices A, B and C of a triangle ABC as centre arcs are drawn with radii 5 cm each as shown in the given figure If AB = 14 cm BC =48cm and CA = 50 cm then find the area of the shaded region( use pie = 3.14) B and C of [...]

A chord of a circle of radius 20 cm subtends an angle of 90 degree at the centre. find the area of the corresponding major segment of the circle. A chord of a circle of radius 20 cm subtends an angle of 90 degree at the centre. find the area of the corresponding major segment [...]

Area of sector of circle of radius 36 cm is 54 π cm^ 2. Find the length of the corresponding arc of the sector. Area of sector of circle of radius 36 cm is 54 π cm^ 2. Find the length of the corresponding arc of the sector. November 25, 2020 Category: Chapter 12 - [...]

In the given figure a circle of radius 7.5 cm is inscribed in a square, find the area of the shaded region. find the area of the shaded region. In the given figure a circle of radius 7.5 cm is inscribed in a square November 25, 2020 Category: Chapter 12 - Areas Related to Circles [...]

Find the area of a sector of a circle of radius 21 cm and central angle 120 degree. Find the area of a sector of a circle of radius 21 cm and central angle 120 degree. November 25, 2020 Category: Chapter 12 - Areas Related to Circles , Maths , NCERT Class 10 ,

Find the diameter of a circle whose area is equal to the sum of the areas of the two circles of diametres 20 cm and 48 cm. Find the diameter of a circle whose area is equal to the sum of the areas of the two circles of diametres 20 cm and 48 cm. November [...]

A circle is inscribed in a square of side 5cm and another circle is circumscribing the square is it true to say that the area of the outer circle is two time the area of the inner circle ? Give reasons for your answer. Area of a sector of central angle 200° of a circle [...]