Question

Help me please i have a geometry honors test tmmrw!!

Answer 1

well, notice the picture, is a square, thus, all sides are equal

now, if we make those sides length "a"

then, using the pythagorean theorem


`\bf 8^2=a^2+a^2\implies 64=2a^2\implies \cfrac{64}{2}=a^2\implies \sqrt{\cfrac{64}{2}}=a`