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Mathematics 9 Online
Marcus123321:

Does anyone know how to solve this and whats the answer?

Marcus123321:

Marcus123321:

Ikr

OLIVER69:

I would say the answer is C because angle A is equal to angle D, angle B is equal to angle E, then angle C is equal to angle F. So that would make II, III and IV true. So your answer is the third option.

Marcus123321:

Ill see if its right

Marcus123321:

I have a harder one

Marcus123321:

OLIVER69:

yeah, i don't know, but maybe @ultrilliam or @jhonyy9 can help

surjithayer:

because triangles are congruent. Hence corresponding angles are equal. \[\angle H=\angle N\] 4x-4=2x+12 4x-2x=12+4 2x=16 x=16/2=8 \[\angle H=4x-4=4\times8-4=32-4=28 \] \[\angle F=5x+13=5\times8+13=53\] \[\angle C=180-(28+53)=180-81=99\]

Ragtagirly:

The correct answer is III. Explanation: Corresponding angles of congruent triangles are equal (I and II). Corresponding parts of congruent triangles are congruent (III and IV). So, the reasonable conclusion is III: CA is congruent to FD because they are corresponding parts of congruent triangles.

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