Porisma
Back to reading

Vectors: magnitude, direction and products

Compare coefficients in two independent directions · Diagrams

Intersection of a produced line with OB

Expand diagram

Use the scrollbars or arrow keys to inspect details.

Triangle OAB with P midpoint of AB and Q midpoint of OP. A,Q,R are collinear, R lies on OB. Distinct midpoint ticks show AP=PB and OQ=QP; direction arrows label OA=a and OB=b. Result OR=OB/3 and AQ:QR=3:1.
Triangle OAB with P midpoint of AB and Q midpoint of OP. A,Q,R are collinear, R lies on OB. Distinct midpoint ticks show AP=PB and OQ=QP; direction arrows label OA=a and OB=b. Result OR=OB/3 and AQ:QR=3:1.
Triangle OAB with P midpoint of AB and Q midpoint of OP. A,Q,R are collinear, R lies on OB. Distinct midpoint ticks show AP=PB and OQ=QP; direction arrows label OA=a and OB=b. Result OR=OB/3 and AQ:QR=3:1.
Open original diagram (new tab)
Back to reading