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Find the coordinates of points *A, B, C, D* in Fig. 27.7

Draw perpendiculars AP, BP, CQ and DR from A, B, C and D on the *x*-axis. Also, draw perpendiculars AW, BX, CY and DZ on the *y*-axis.

From the figure, we have:

AW = 1 cm and AP= 1 cm

So, the coordinates of vertex A are (1, 1).

Similarly, BX = 1 cm and BP = 4 cm

So, the coordinates of vertex B are (1, 4).

CY = 4 cm and CQ= 6 cm

So, the coordinates of vertex C are (4, 6).

DZ = 5 cm and DR= 3 cm

So, the coordinates of vertex D are (5, 3).

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