AAS Congruency

Q.

Trapezoid EFGH and QRST are congruent.

1. What is the length of side QR?
2. Which angle in QRST corresponds to $\angle \mathrm{H}$?
3. What is the perimeter of QRST?

Q.

In the figure, AC = DE = 7 cm. If BD = 4 cm, then CF equals

1. 3 cm

2. 2 cm

3. 4 cm

4. 5 cm