Given:
The block is in the shape of a cylinder.
Radius of the block (r) = 3 cm
Length of the block (h) = 10 cm
2.9 gram = 1 cubic centimeter
To find:
The weight of the cylindrical block.
Solution:
The value of π = 3.142
Volume of the cylindrical block =


Volume of the cylindrical block = 282.7 cubic centimeter
To convert cubic centimeter into grams:
1 cubic centimeter = 2.9 grams
282.7 cubic centimeter = 282.7 × 2.9
= 819.83 grams
The weight of the cylindrical block is 819.83 grams.