10th Class
Mathematics
Sample Paper
Maths Olympiad Model Test Paper-3
question_answer
In the adjoining figure, ABCD is a parallelogram in which \[DC=10\,\,cm\] and \[\left( -\,2,-\,1 \right)\]. AP is perpendicular to DC. If \[\angle ADC=60{}^\circ ,\] find the length of AP.