Solving Quadratics by Factoring
r^2-8r=0

Algebra ExamplesPopular Problems Algebra Solve Using the Quadratic Formula r^2-8r=0r2−8r=0r2-8r=0Use the quadratic formula to find the solutions.−b±√b2−4(ac)2a-b±b2-4(ac)2aSubstitute the values a=1a=1, b=−8b=-8, and c=0c=0 into the quadratic formula and solve for rr.8±√(−8)2−4⋅(1⋅0)2⋅18±(-8)2-4⋅(1⋅0)2⋅1Simplify.Tap for more steps...r=4±4r=4±4

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's