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6. Find the value of r in the following triangle.
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6. Find the value of r in the following triangle.

6. Find the value of r in the following triangle.-example-1
User Supreet Singh
by
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1 Answer

3 votes

Answer:

r = 19.2deg

Explanation:

6r + 5 = 30 + 90 (exterior angles of a triangle)

6r = 115

r = 19.2deg (1dp)

Topic: Angles

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User Tuxmentat
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