Give the rough sketch of the curve y² = x and the line x = 4 and find the area between the curve and the line.    

Find the area bounded between the curve y² = x and the line x = 3. Draw the rough sketch also.    

Find the area of the region bounded by the curve  y = x² and the line y = 4.

Find the area of the region bounded by the curve y² = 4x and the line x = 3.

Using definite integrals, find the area of the circle x² + y² = a².