Answer: 7cm
Explanation:
The surface area of a sphere is calculated by using the formula:
A = 4πr²
Since the surface area is 616cm², using the formula given, the radius will be calculated thus:
A = 4πr²
616 = 4 × 22/7 × r²
616 = 88/7 × r²
Multiply both side by 7/88
616 × 7/88 = 88/7 × 7/88 × r²
49 = r²
r = ✓49
r = 7
The radius is 7cm
What does challenge mean to you
Answer:Physical activity can also reduce the risk of premature death. ... Helping inactive people become more active is an important step towards better health. ... 4 in 5 of the most costly chronic conditions among adults 50 years or older can be ... you can spread your activity out during the week, so you don't have to do it all at once
You would definitely underweight. The villi in your small intestines increase intestinal absorptive surface area approximately 30-fold and 600-fold respectively. This provides exceptionally efficient absorption of nutrients in the lumen. This increases the surface area for food to be absorbed. So if there were to be less villi you would underweight.
C.) connecting with new people
