Q. 1 H5.0( 1 Vote )
Choose the correct answer:
The central angle of a semicircle is _________
A. 90°
B. 270°
C. 180°
D. 360°
Answer :
The central angle of a semicircle is always 180°.
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A park is in the shape of a semicircle with radius 21 m. Find the cost of fencing it at the cost of ` 5 per metre.
Tamilnadu - Math Term-1Choose the correct answer:
Perimeter of a semicircle is ________
Tamilnadu - Math Term-1Choose 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,
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.
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