Q. 3 C5.0( 1 Vote )

# Find the perimeter and area of semicircles whose diameters are,

84 cm

Answer :

Diameter = 84 cm

= 42 cm

Perimeter of semicircle = πr + 2r

= 216 cm

= 2772 cm^{2}

Rate this question :

Choose the correct answer:

The number of quadrants in a circle is_______

Tamilnadu - Math Term-1Choose the correct answer:

If the radius of a circle is 7 m, then the area of the semicircle is _______

Tamilnadu - Math Term-1Find the perimeter and area of semicircles whose diameters are,

56 cm

Tamilnadu - Math Term-1Find the perimeter and area of semicircles whose diameters are,

2.8 cm

Tamilnadu - Math Term-1Find the perimeter and area of semicircles whose radii are,

4.9 m

Tamilnadu - Math Term-1A square park has each side of 100 m. At each corner of the park there is a flower bed in the form of a quadrant of radius 14 m as shown in the figure. Find the area of the remaining portion of the park.

Tamilnadu - Math Term-1

In the given figure, find the area of the shaded portion if AC = 54 cm, BC = 10 cm, and O is the centre of bigger circle.

Tamilnadu - Math Term-1

A cow is tied up for grazing inside a rectangular field of dimensions 40 m × 36 m in one corner of the field by a rope of length 14 m. Find the area of the field left ungrazed by the cow.

Tamilnadu - Math Term-1Calculate the perimeter and area of a quadrant of the circles whose radii are,

98 cm

Tamilnadu - Math Term-1Find the perimeter and area of semicircles whose diameters are,

112 m

Tamilnadu - Math Term-1