120 Equilateral triangle in a rectangle
Exercise
1.Show that Area(ABP)+ Area(ADQ)= Area(CPQ).
P
Q
A B
D C
2.Ta ke a 9 × 10 rectangleABCDand obtain the equilateral triangle
AP Qbyfolding.
3.Pis a point in the interior of a rectangleABCD. SupposeAP=a,
BP=b,CP=c. Find the distanceDPin terms ofa,b,c.
P
A
B C
D
4.A pavement of widthdis constructed across a rectangular field of
dimensionsabyb. What is the area of the pavement?
b
a
d
A B
D C
P
Q