The vertex where the two triangles touch forms a pair of vertical angles, so that the angles on opposites sides of the vertex are congruent. You're shown that two legs of both triangles are congruent. All this tells you that the two triangles are isosceles, and furthermore that they are similar because of the congruence of their "base" angles.
This means




Answer:
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• c 15
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Answer:
Area = πr²
Circumference = 2πr
You can use pie as both 22/7 Or 3.14
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Answer:
(-2,-3)
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I took the test and got it wrong at first but seen the correct answer when I looked at my results.