PQ and QR are 2 sides of a regular 12-sided polygon. PR is a diagonal of the polygon.

Work out the size of angle PRQ.
You must show your working.

Classify the following triangle check all that apply

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base