The area of a semicircle is 308 cm2. Calculate its perimeter (in cm). 

The area of a semicircle is 308 cm². Calculate its perimeter (in cm). 
1). 144
2). 49
3). 98
4). 72

---

Join Telegram Group

Other Questions

1. The capacities of two hemispherical vessels are 6.4 litres and 21.6 litres. The ratio of their inner radii is

2. A pyramid has a square base, whose side is 8 cm. If the height of pyramid is 16 cm, then what is the total surface area (in cm2) of the pyramid?

3. If the perimeter of an equilateral triangle be 18 cm. then the length of each median is

4. The area of a rhombus is 256 square cm. and one of its diagonals is twice the other in length. Then length of its larger diagonal is

5. Find the total surface area (in cm2) of a right circular cone of diameter 21 cm and slant height 11 cm.

6. A right pyramid with a square base has base 12 cm and height 40 cm. It is kept on its base. It is cut into 4 parts of equal heights by 3 cuts parallel to its base. What is the ratio of volume of the four parts?

7. A hemisphere and a cone have equal base. If their heights are also equal, the ratio of their curved surface will be :

8. In an isosceles triangle, the length of each equal side is thrice the length of the third side. The ratio of areas of the isosceles triangle and an equilateral triangle with same perimeter is

9. A solid sphere has a radius 21 cm. It is melted to form a cube. 20% material is wasted in this process. The cube is melted to form hemisphere. In this process 20% material is wasted. The hemisphere is melted to form two spheres of equal radius. 20% material was also wasted in this process. What is the radius (in cm) of each new sphere?

10. The radius of a circle is increased by 1%. How much does the area of the circle increase