Question

a rectangular field has 80 m lenght and 48m breadth . three roads ,each of width 2 m pass through the field such that two roads are parellel to the breadh and the third road parallel to the lenghth . find the area covered by the three roads

Answer 1

Sound on a brass instrument comes from a vibrating column of air inside the instrument. The player makes this column of air vibrate by buzzing the lips whileblowing air through a cup or funnel shaped mouthpiece.