Provide an appropriate response.In the figure below, 
and 
Prove that the triangle ABE is an isosceles triangle.
What will be an ideal response?
Answers will vary. A sample correct response would be as follows.
As ?ACD is isosceles, 
It follows that 
By ASA, 
and hence 
i.e. triangle ABE is isosceles.
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Fill in the blank(s) with the appropriate word(s).
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A. 3x2 + 3x - 1
B. 3x2 - 7x + 
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