What is 489,334,209 rounded of the nearest million

Looking at the number the 9 is in the millions place value.  Underline this digit and circle the number immediately to the right of this number.  This will tell you whether to add one to the underlined number or keep it the same number.  With the 3 in the hundred thousands place, it is NOT 5 or greater and the underlined number remains the same.  All other numbers to the right of the rounded place value become zeros including the circled digit.  You would round this number to 489,000,000

A)26•2=52there are 2 sides with the same length116-52=64the other 2 side have to be half of 64 each64/2=32the width is 32b)make two sentences about these steps because your teacher knows how you write and explain things.