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Contact [7]
3 years ago
8

Line GJ is tangent to point A at point G. If AG = 9 and GJ = 12, find AJ.

Mathematics
2 answers:
Montano1993 [528]3 years ago
5 0

Answer:

GJ is a tangent

АG is a radius

Step-by-step explanation: maybe

kompoz [17]3 years ago
4 0
GJ is a tangent
АG is a radius
A tangent line to a circle is perpendicular to the radius drawn to the tangent point   ⇒ m∠АGJ = 90°  ⇒ ΔАGJ is the right triangle.

<span>By the Pythagorean theorem:
</span>AJ² = АG² + GJ²
AJ² = 9² + 12² = 81 + 144 = 225
AJ = √225 = 15 units.
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<em>Comment on the question</em>

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weqwewe [10]

Answer:

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The angle of C is 115 because it is a supplementary angle. A supplementary angle is an angle that has two angles with a sum of 180 degrees and 180 – 65 = 115The angles of A and B are 45 degrees. This is true because the other angle is a right angle (90 degrees) and if you are making a triangle the degrees of the sides have to = 180 to be a complete triangle. The triangle is complete, so I took 180 – 90 = 90 ÷ 2 = 45.

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Step-by-step explanation:

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