Answer:

Step-by-step explanation:
Let sides of the triangle be 

Semi-perimeter (s) = 

Area of one tile 

So,
Area of 20 tiles 
Cost of polishing the floor at the rate of 2 rupees per sq.cm = 
Answer:
C. chemical energy is what it's stored in the form of
Answer:
1
Step-by-step explanation:
because everytime you turn it you are looking at one face.
Answer:
30 hrs here ya go !!!!!!!!!!!!!!!
B, C, and D. you name a triangle with the corners, not the sides.