Advertisements
Advertisements
प्रश्न
Find the length of an arc if measure of the arc is 90° and its radius
is 14 cm.
Advertisements
उत्तर
Measure of arc = 90°
Radius of circle = 14 cm
Length of arc = `θ/360 × 2πr`
=` 90/360 × 2 × 22/7 × 14`
= 22 cm
APPEARS IN
संबंधित प्रश्न
The radius of a circle is 10 cm. The measure of an arc of the circle is 54°. Find the area of the sector associated with the arc. (\[\pi\]= 3.14 )
The measure of an arc of a circle is 80° and its radius is 18 cm. Find the length of the arc. (π = 3.14)
Area of a sector of a circle of radius 15 cm is 30 cm2 . Find the length of the arc of the sector.
In the given figure, square ABCD is inscribed in the sector A - PCQ. The radius of sector C - BXD is 20 cm. Complete the following activity to find the area of shaded region
In Δ ABC, if ∠ A = 65° ; ∠ B = 40° then find the measure of ∠ C.
Length of a rectangular tank is twice its breadth. If the
depth of the tank is 3 m and area of its four walls is 108 m2, find the
length of the tank.
Measure of an arc of a sector of a circle is 900 and its radius is 7cm. Find the perimeter of the sector.
(A) 44 cm (B) 25 cm (C) 36 cm (D) 56 cm
A circle is inscribed in square ABCD of side 14 cm. Complete the following activity to find the area of the shaded portion.
Activity:
Area of square ABCD = ______
= 142
= 196 cm2
Area of circle = πr2 = `22/7xx 7^2`
= ____ cm2
Area of shaded portion = Area of square ABCD – Area of circle
= 196 – _______
= _____ cm2
For the sectors with given measures, find the length of the arc, area and perimeter. (π = 3.14)
central angle 45°, r = 16 cm
For the sectors with given measures, find the length of the arc, area and perimeter. (π = 3.14)
central angle 120°, d = 12.6 cm
A circle of radius 120 m is divided into 8 equal sectors. Find the length of the arc of each of the sectors
Two gates are fitted at the entrance of a library. To open the gates easily, a wheel is fixed at 6 feet distance from the wall to which the gate is fixed. If one of the gates is opened to 90°, find the distance moved by the wheel (π = 3.14)
In the given figure `square`ABCD is a square of side 50 m. Points P, Q, R, S are midpoints of side AB, side BC, side CD, side AD respectively. Find area of shaded region
If x = `θ/360` × 2πr then what is x in the formula?
In the given figure, a rectangle ABCD is inscribed inside a semi-circle of radius 10 cm. Using the dimensions given in the figure, determine the area of the shaded region.
