1. "The land's a funny shape," said Derek, pointing to the plan. "And we'll have that bit of lawn at the side." Toby nodded. "A triangular lawn, eh? How large will it be?" "A teaser for you!" Derek chuckled. "The longest side is eight feet less than twice the shortest, and the other side is eight feet more than the shortest. The area will be just three times the perimeter, square feet and feet." One for you, too!

Lawn sides 17, 25 and 26 feet

Lawn sides 15, 24 and 28 feet

Lawn sides 12, 19 and 22 feet