A(0, 1), B(1, 4), C(4, 3) and D(3, 0) are the vertices of a quadrilateral ABCD. (i) Find the equations of the diagonals AC and BD. (ii) Show that the diagonals AC and BD bisect each other at right angles. (ii) Find the lengths of AC and BD.

The correct answer is £72 by WeGoFast and £80 by ParcelsFly

Step-by-step explanation:

Hector wants to send a parcel to Spain.

Dimension of his cuboid parcel is 10 cm by 10 cm by 40 cm.

Sum of the three dimension in cm = (10 + 10 + 40) cm = 60 cm.

Volume of the parcel in  = (10 × 10 × 40)  = 4000.

Price charge by WeGoFast = Sum of the three dimensions in cm × £1.20

= £ (60 × 1.20) = £72.

Price charged by ParcelsFly = Volume measured in  × £0.02

= £ (4000 × 0.02) = £80