1. Rosita was looking out of the window. "You've changed your patio," she said. "It used to be square." "That's right, but it's a dirty word these days." Ruby chuckled. "We made it four feet longer and took three feet off the width, so it's just one square foot bigger than it was." What were the new dimensions?

Patio 17 feet by 10 feet

Patio 14 feet by 12 feet

Patio 15 feet by 9 feet