# Problem 8.10 Development of Surfaces of Solids

Problem 8.10 Development of Surfaces of Solids – One cuboid of side of 40 mm x 60 mm x 40 mm is resting on its longer side on H.P. & one of the longer surfaces of the cuboid is parallel to V.P .It is cut by a cutting plane which is perpendicular to V.P. and inclined to H.P. such that it passes diagonally from one corner of the top to the opposite corner of the bottom. Develop the lateral surface of the cuboid.

# Problem 8.9 Development of Surfaces of Solids

Problem 8.9 Development of Surfaces of Solids – The cylinder of diameter of base 50 mm and axis height 60 mm is resting on its base on H.P. as shown in the figure below. Develop the surface of the cylinder.

# Problem 8.8 Development of Surfaces of Solids

Problem 8.8 Development of Surfaces of Solids – The cone of diameter of base 50 mm and axis height 60 mm is resting on its base on H.P. as shown in the figure below. One square hole of size 20 mm is cut through the cone as per the figure given below. Develop the surface of the cone.

# Problem 8.7 Development of Surfaces of Solids

Problem 8.7 Development of Surfaces of Solids – A cylinder of diameter 50 mm and axis height 60 mm is resting on its base on H.P. And one square hole of size 25 mm is cut through the cylinder such that the axis of the square hole is parallel to H.P. perpendicular to V.P. and in the center of the vertical axis of the cylinder. And the sides of the square hole are equally inclined with the H.P. Develop the lateral surface of the cylinder.

# Problem 8.6 Development of Surfaces of Solids

Problem 8.6 Development of Surfaces of Solids – A cylinder of diameter of base 60 mm and axis height 110 mm is resting on its base on H.P. It is cut by a cutting plane perpendicular to V.P. and inclined at an angle 60° with the H.P. and passing through the distance of 20 mm form the top end of the cylinder and on the axis. Develop the lateral surface of the cylinder.

# Problem 8.5 Development of Surfaces of Solids

Problem 8.5 Development of Surfaces of Solids – A hexagonal prism with 40 mm sides of its base is resting on H.P. and two sides of its base are perpendicular with V.P. It is cut as per the figure given below. Develop the lateral surface of the hexagonal prism.

# Problem 8.4 Development of Surfaces of Solids

Problem 8.4 Development of Surfaces of Solids – A hexagonal prism is resting on H.P. on its base with two edges/sides of base parallel to V.P. One equilateral triangular shape of size 20 mm is cut from the prism such that the axis of the triangle is perpendicular to V.P. & parallel to H.P. & passing through the center of the height & width of the prism. Develop the surface of the prism. Take side of base 30 mm and height of axis 80 mm of the prism.

# Problem 8.3 Development of Surfaces of Solids

Problem 8.3 Development of Surfaces of Solids – The cylinder with diameter Ø 50 mm and height 60 mm as shown in the fig. 2 below. Develop the surface of the cylinder.