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Mathematics 7 Online
OpenStudy (allen27):

please help

OpenStudy (slenderman):

i might have your help

OpenStudy (allen27):

The figure below shows a square ABCD and an equilateral triangle DPC: Statements Justifications In triangles APD and BPC; DP = PC Sides of equilateral triangle DPC are equal In triangles APD and BPC; AD = BC Sides of square ABCD are equal In triangles APD and BPC; angle ADP = angle BCP Angle ADC = angle BCD = 90° and angle ADP = angle BCP = 90° - 60° = 30° Triangles APD and BPC are congruent SSS postulate What is the error in Jim's proof? (1 points) He writes DP = PC instead of DP = PB. He writes AD = BC instead of AD = PC. He assumes the measure of angle ADP and angle BCP as 30° instead of 45°. He assumes that the triangles are congruent by the SSS postulate instead of SAS postulate.

OpenStudy (slenderman):

is P supposed to be the middle?

OpenStudy (slenderman):

or is it a pyramid

OpenStudy (allen27):

pyrimid

OpenStudy (slenderman):

going by all the points you posted above it looks like you already have it answered

OpenStudy (allen27):

is it the last choice

OpenStudy (allen27):

@Slenderman

OpenStudy (dumbcow):

yes its option D , the proof shows 2 congruent sides and 1 congruent angle, therefore SSS does not apply

OpenStudy (allen27):

thx

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