Find the area of the glass painting which has a triangle on a square as given in the figure.

Find the area of the irregular polygon shaped fields given below.

Which 3-D shapes do the following nets represent? Draw them.

For each solid, three views are given. Identify for each solid, the corresponding top, front and side (T, F and S) views.

Solid	Three views

Can a polyhedron have 12 faces, 22 edges and 17 vertices?

Draw the top, front and side view of the following solid shapes

Draw the net for the cube of side 4 cm in a graph sheet.

Guna has fixed a single door of 3 feet wide in his room where as Nathan has fixed a double door, each 1\(\frac{1}{2}\) feet wide in his room. From the closed state, if each of the single and double doors can open up to 120⁰, whose door requires a minimum area?

Using graph sheet, draw the net for the cuboid whose length is 5 cm, breadth is 4 cm and height is 3 cm and also find its area.

Using Euler’s formula, find the unknowns.

S.No.	Faces	Vertices	Edges
(i)	?	6	14
(ii)	8	?	10
(iii)	20	10	?