Mathematics of the sixth grade in primary school Volume 2 1 Page 2, Page 22, The answer to 6 questions is to find the surface area of those shapes.

P 2 1 Question 2: The first flat cylinder V=3. 14 times the square of 5 and then times 2= 157 (cubic centimeter), and the square of the second V = 3.14 * 2 *12 =/.

P22 question 6: the square of1,v = 3.14 * 3 *12 = 339.12 (cubic centimeter) s = 2 * 3.14 * 3+6 *. S =15 *10 * 2+2 *15 * 20+2 *10 * 20 =1600 (square centimeter)

3. The square of V =3. 14*7 *5=769.3 (cubic centimeter) S = 2 * 3.14 * 7+3.14 *14 * 5 = 527.52.

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