Given and . If and , find…

MATHEMATICS · Single correct · AoPS · Mathematics · Follow the Rules · Follow the Rules

Problem

Given

AB = CD

and

EF = GH

. If

AB + EF = 12\text{ cm}

and

EF = 4\text{ cm}

, find

CD + GH

. (a)

8\text{ cm}

(b)

20\text{ cm}

(c)

12\text{ cm}

(d)

16\text{ cm}