A Rubber Ball Has a Diameter of 8 Cm $1 \mathrm {~cm} ^ { 2 }$

question 40

Short Answer

A rubber ball has a diameter of 8 cm.What is its surface area? a. $1 \mathrm {~cm} ^ { 2 }$
b. $10 \mathrm {~cm} ^ { 2 }$
c. $100 \mathrm {~cm} ^ { 2 }$
d. $1000 \mathrm {~cm} ^ { 2 }$

---

Definitions:

National Income

National income is the total amount of money earned within a country, including wages, rent, interest, and profits, after accounting for depreciation and indirect business taxes.

Corporate Profits

The earnings of a corporation after all expenses, taxes, and costs have been deducted from total revenue, indicating the financial health and operational efficiency of the company.

Psychic Income

The non-material satisfaction or pleasure derived from an activity or possession, not measured in terms of money.

Psychic Cost

The mental or emotional strain and stress that can arise from making decisions or engaging in a transaction, not accounted for in traditional financial costs.