Advertisements
Advertisements
प्रश्न
A circular flower garden has an area of 314 m2. A sprinkler at the centre of the garden can cover an area that has a radius of 12 m. Will the sprinkler water the entire garden? (Take π = 3.14)
Advertisements
उत्तर
Area = πr2 = 314 m2
3.14 × r2 = 314
r2 = 100
r = 10 m
Yes, the sprinkler will water the whole garden.
APPEARS IN
संबंधित प्रश्न
Find the area and perimeter of a square plot of land whose diagonal is 24 m long.
Find the perimeter and area of the quadrilateral ABCD in which AB = 17 cm, AD = 9 cm, CD = 12 cm, ∠ACB=90° and AC = 15 cm.
Find the area of the circle in which a square of area 64 cm2 is inscribed. [Use π = 3.14]
Find the area of the following figure, in square cm, correct to one place of decimal. (Take π = 22/7).
In the following figure, ABCD is a trapezium of area 24.5 cm2 , If AD || BC, ∠DAB = 90°, AD = 10 cm, BC = 4 cm and ABE is quadrant of a circle, then find the area of the shaded region. [CBSE 2014]
What is the length (in terms of π) of the arc that subtends an angle of 36° at the centre of a circle of radius 5 cm?
The area of a circle is 220 cm2. The area of ta square inscribed in it is
If a chord of a circle of radius 28 cm makes an angle of 90 ° at the centre, then the area of the major segment is
The length of an arc of a circle, subtending an angle of 54° at the centre, is 16.5 cm. Calculate the radius, circumference and area of the circle.
The short and long hands of a clock are 4 cm and 6 cm long respectively. Find the sum of distances travelled by their tips in 2 days.
