Use Heron's Area Formula to Find the Area of the Triangle

question 27

Multiple Choice

Use Heron's area formula to find the area of the triangle pictured below, if $a = 8$ inches, $\mathrm { b } = 10$ inches, and $\mathrm { c } = 4$ inches.

• A) \(\sqrt { 21 }\)
• B) 16
• C) 40
• D) \(12 \sqrt { 21 }\)
• E) \(\sqrt { 231 }\)

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Definitions:

Discount Rate

The interest rate used in discounted cash flow (DCF) analysis to determine the present value of future cash flows.

Payback Period

The time it takes for an investment to generate an amount of income or cash flows enough to cover the initial cost of the investment.

Salvage Value

The estimated value that an asset will realize upon its sale at the end of its useful life.

Net Cash Flows

The net amount of cash and cash equivalents moving into and out of a business within a specified period.