Corinne is knitting a scarf with blue and green stripes . The scarf is 8 inches wide. She knits a blue stripe that is 4 inches long. She knits a green stripe that is 5 inches long. What is the area of the scarf so far?
The formula for the area of a rectangle is length x width. We know that the width is 8 inches. We find the length by adding 4+5, which equals 9. now, it's simple. 8 x 9 =45.
