16 cm 5cm+5cm+3cm+3cm=16cm
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A rectangle with sides of 1cm and 6cm has an area of 6 cm2 and a perimeter of 14 cm. A rectangle with sides of 2cm and 3cm has the same area but its perimeter is 10 cm.
length + width = 20/2 = 10 length = 7cm, width = 3cm
Oh, dude, it's like super simple. The area of a rectangle is just the length times the width, so for a 6cm by 3cm rectangle, you just multiply 6 by 3 to get 18 square centimeters. Voilà, math magic!
An isosceles triangle
yeah. a 3cm by 3cm square.