i need help asap! pleasee on number3,4,5 ​

3)  Since each block is 1.0 m by 1.0 cm, its area is 1.0 cm².

     Count up the number of whole blocks and add to that answer what you believe is an estimate of each of the partial blocks.

 

4)  a)  You might have a circular swimming pool and need to find its volume ...

     b)   Measuring the distance around the circular swimming pool ...

 

5)  a)  Area  =  pi · r²     [Find the radius first by dividing the diameter by 2.]

     b)  The top half is one-half of the answer from part a).