Sonja determines that triangle CGD is an isosceles triangle.

Which statement best describes Sonja’s conclusion?

It is incorrect because angle GCD = 42°, angle GDC = 36°, and angle CGD = 102°.

It is incorrect because angle GCD = 48°, angle GDC = 36°, and angle CGD = 96°.

It is correct because angle GCD = 42°, angle GDC = 42°, and angle CGD = 96°.

It is correct because angle GCD = 48°, angle GDC = 48°, and angle CGD = 84°

Question

Sonja determines that triangle CGD is an isosceles triangle. 

Which statement best describes Sonja’s conclusion?

 It is incorrect because angle GCD = 42°, angle GDC = 36°, and angle CGD = 102°.

 It is incorrect because angle GCD = 48°, angle GDC = 36°, and angle CGD = 96°.

 It is correct because angle GCD = 42°, angle GDC = 42°, and angle CGD = 96°.

 It is correct because angle GCD = 48°, angle GDC = 48°, and angle CGD = 84°

anonymous · Answer

attachment

anonymous · Answer

@amistre64 can u help me ?

amistre64 · Answer

maybe, depends on how well my internet connection wants to be tonight

anonymous · Answer

okay . Well i do not understand how to do this problem

amistre64 · Answer

fill in the missing degrees to see how this plays out

amistre64 · Answer

how many degrees do that angles of a triangle measure up to?

anonymous · Answer

180

amistre64 · Answer

then lets work out from the left side; 180 - 42 - 90 = C, for starters

anonymous · Answer

c is 48

amistre64 · Answer

we should know that angles on opposite sides of crossing lines are the same

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