SPHERE is a space figure with such a shape that every point on it is of the same distance to the center. Surface Area of a SPHERE is equal to 4 times the product the of n and square of the radius SA = 4nr 2 Ex. Find the surface area of a sphere with a radius of 3 cm. Use 3.14 for Sol. SA = 4(3.14) (3 cm )? = Na Sphere = ( 12.56) (9 cm) M SA = 113.04 cm2 w Activity 2 (sphere) Find the surface area of the following.
1. r = 6 ft ; Ans.:
2. r = 8 dm ; Ans.
1. r = 6 ft ; Ans.:
2. r = 8 dm ; Ans.
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Answer:
1.)452.16 ft²
2.)803.84 dm²
Step-by-step explanation:
1.)SA=4(3.14)(6ft)²
=(12.56)(36ft²)
SA =452.16 ft²
2.)SA=4(3.14)(8dm)²
=(12.56)(64dm²)
SA=803.84 dm²