Use Heron's formula to find the area of the triangle. The figure is not to scale. c=9 ft a=20 ft b=19 ft The area is square feet. (Do not round until the final answer. Then round to two decimal places as needed.)

Trigonometry (MindTap Course List)
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Chapter3: Additional Topics In Trigonometry
Section3.2: Law Of Cosines
Problem 5ECP
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Use Heron's formula to find the area of the triangle.
B
The figure is not to scale.
c=9 ft
a=20 ft
A
b=19 ft
The area IS
Square feet.
(Do not round until the final answer. Then round to two decimal places as needed.)
Transcribed Image Text:Use Heron's formula to find the area of the triangle. B The figure is not to scale. c=9 ft a=20 ft A b=19 ft The area IS Square feet. (Do not round until the final answer. Then round to two decimal places as needed.)
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