The figure shows a square pyramid that will be cut into multiple solids by extending the purple and red shapes. Select the solids that will result from the cuts. 




How many right-angled triangles are there in the given image? 
How many surfaces are there in the letters of the word sign ‘DESIGN’? Two views of the sign are shown below. 
A pin is connected perpendicular to the center of a circular disk as shown. A little push will make it roll over a grey circle. How many turns does it take to come back to its original position? 
The two objects on the left have a height of 1 cm and sides of 4 cm. The yellow object on the right has a total height of 5 cm. The cylindrical base of the yellow object has a diameter of 6 cm and a height of 1 cm. The two objects on the left are to be stacked on the yellow object on the right. After all the objects are stacked together, how many outer surfaces will the resulting structure have?




