Brain Teasers
Find the Area
Five congruent squares are put together without gaps or overlap to form a figure shaped like a plus sign. The perimeter of the figure is 72 cm. Find the area of the figure, in sq cm.
Hint
Find the length of one side of the figure.Answer
Answer: 180 square centimetersExplanation: Because the five squares are congruent, the 12 sides of the figure are all equal in length. Then the length of one side is 72/12 = 6 cm. Therefore, the area of each square is 36 sq cm and the area of the figure, 5 x 36, is 180 sq cm.
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Comments
Good job!
hehe, i've taken geometry so it wasn't that mind boggling 4 me!
nice teaser tho
nice teaser tho
yeah... basic geometry... fun but simple
Good teaser!
good geo practice, but easy
p shaw i havent even taken geometry yet and i got that
true, it was pretty easy. I dont no y i submited it. take it easy tho.
pretty e-z, but i cant say much cause i'm never gonna send 1 in
i did that in my head just for fun and i got it RIGHT! now theres something you dont see every day!
it was easy but fun
it was easy but fun
This one's fun to do in your head.
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