3. Solve for all parts of the triangle with the given sides: a 21, b 19, c = 25.

Elementary Geometry For College Students, 7e
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ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter6: Circles
Section6.2: More Angle Measures In The Circle
Problem 6E: Is it possible for a a rectangle inscribed in a circle to have a diameter for a side? Explain. b a...
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3. Solve for all parts of the triangle with the given sides: a 21, b = 19, c = 25.
4. What is the area of a regular hexagon inscribed in a circle of radius 16?
Transcribed Image Text:3. Solve for all parts of the triangle with the given sides: a 21, b = 19, c = 25. 4. What is the area of a regular hexagon inscribed in a circle of radius 16?
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As per bartleby guidelines for more than one question asked only one is to be answered please upload the other separately

3. Given data is :

Sides of triangle are a=21, b=19 and c=25

In triangle 3 sides is given so required to calculate three angles

Use cosine formula to calculate angle,

cosA=b2+c2-a22bc

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