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How to write the third, fourth and fifth questions on page 19 and the second question on page 22 in the sixth grade of primary school?
Hello, I am glad to answer the third question on page 19: 6/2=3 (meters).

Bottom area: 3. 14*3 squared =28.26 (square meter)

Transverse area: 3. 14*6* 1.5=28.26 (m2)

28.26+28.26=56.52 square meters

A: ..............

Question 4:15.7/(3.14 * 2) = 2.5 (cm)

2 * 3. 14 * 2.5 * 2.5+ 15.7 * 15.7 = 285.74(cm? )

Question 5: 3.14 *10 * 40/2+(10/2)? * 3. 14+ 10 * 40 = 1 106.5(cm? ) choose me as the best answer ~