Question

5. A standard letter-sized piece of paper has a length and width of 8.5 inches by 11 inches.
a. Find the area of one piece of paper.
93.5 is the area of one piece of paper.
b.
If the paper were folded completely in half, what would be the area of the resulting rectangle?
46.75 would be the area of the resulting rectangle.
C.
Write a formula for a sequence to determine the area of the paper after n folds.
d.
What would the area be after 7 folds?​

Answer 1

Answer:

(a) Area of one piece of paper,

Given: $l$ = 11 inches  $b$ = 8.5 inches

Area of letter (Rectangle shape) = $l$ × $b$

                                                     = 11 x 8.5

                                                     = 93.5 inch²

(b) Area of paper folded completely by half

= $93.5 \frac{1}{2}$ = 46.75 inch²           { Add a x sign b/w 93.5 and 1/2} {Multiply}

(C) Formula = $\frac{1}{n}$ × 93.5 inch²

(D) $\frac{1}{7}$ × 93.5 = 13.357 inch²