Advertisements
Advertisements
Question
A table top is semicircular in shape with diameter 2.8 m. Area of this table top is ______.
Options
3.08 m2
6.16 m2
12.32 m2
24.64 m2
Solution
A table top is semicircular in shape with diameter 2.8 m. Area of this table top is `bb(underline(3.08 m^2))`.
Explanation:
From the question it is given that, diameter of semicircular shape = 2.8 m
So, radius of semicircular shape = `2.8/2` = 1.4 m
Then, area of semicircular shape of tablet top = `(πr^2)/2`
= `((22/7) xx 1.4 xx 1.4)/2`
= 3.08 m2
APPEARS IN
RELATED QUESTIONS
The length of the minute hand of a clock is 14 cm. Find the area swept by the minute hand in 5 minutes.
In the following figure, shows the cross-section of railway tunnel. The radius OA of the circular part is 2 m. If ∠AOB = 90°, calculate:
the height of the tunnel
If the circumference and the area of a circle are numerically equal, then diameter of the circle is
In the following figure, the shaded area is
The radius of a circle is 20 cm. It is divided into four parts of equal area by drawing three concentric circles inside it. Then, the radius of the largest of three concentric circles drawn is
A pendulum swings through an angle of 30° and describes an arc 8.8 cm in length. Find the length of the pendulum.
In the given figure, O is the centre of the bigger circle, and AC is its diameter. Another circle with AB as diameter is drawn. If AC = 54 cm and BC = 10, find the area of the shaded region.
The minute hand of a clock is 12 cm long. Find the area of the face of the clock described by the minute hand in 35 minutes.
Find the area of a flat circular ring formed by two concentric circles (circles with the same centre) whose radii are 9 cm and 5 cm.
There is a path of uniform width 7 m round and outside a circular garden of diameter 210 m. Find the area of the path.
