Area of an Isosceles Triangle

question 5

Multiple Choice

Area of an Isosceles Triangle. Consider an isosceles triangle with legs measuring 21 cm each and base angles measuring 26° each. Find the area of the triangle. Round to the nearest integer.

• A)85 cm²
• B)105 cm²
• C)356 cm²
• D)87 cm²
• E)174 cm²

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Definitions:

Total Revenue Curve

A graphical representation showing how total revenue changes as the quantity sold of a good or service varies, holding all else constant.

Marginal Revenue Curve

A graphical representation showing the change in total revenue with respect to changes in the quantity of goods or services sold.

Downsloping

Characterizes a line or curve on a graph that decreases in value as it moves from left to right, often used in reference to demand curves.

Pure Monopoly Firm

A market structure where a single entity exclusively controls the supply of a product or service without any close substitutes.