2. Area of parallelogram = bottom * height

Area of triangle = 1/2 base * height

The cardinality is equal and the area is equal. The height of a triangle is twice that of a parallelogram.

Height of parallelogram =4.5 cm.

3.8 hours and 34 minutes -7 hours and 50 minutes =( 44 minutes)

4.4/ 15 & lt； 4/ 14 & lt； 5/ 14

5. Trapezoidal circumference = upper bottom+lower bottom+sum of two waists.

Upper sole+lower sole =38-26= 12 cm.

Trapezoidal area = 1/2 (upper bottom+lower bottom) * height

Height = 2 * 60/12 =10cm