20 decimeters= 200 meters.
2 meters= 2 meters.
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60% = .6 > .2 (20%)
Let the height be x-8 and the base be x: 1/2(height)(base) = area 1/2(x-8)(x) = 10 Multiply both sides by 2: (x-8)(x) = 20 Multply out the brackets: x2 -8x = 20 Solve as an quadratic equation: x2-8x-20 = 0 Factorize: (x+2)(x-10) = 0 Solution: x = -2 or x = 10 The dimensions can't be negative so x must = 10 Therefore: height = 2 meters and base = 10 meters
8.5 meters or 8 1/2 meters
The width of the rectangle is 13 meters. The perimeter of the rectangle is 50 meters, and its length is 12 meters. The 50 meters is 2 times the length plus 2 times the width. With a length of 12 meters, twice that is 24 meters. That leaves 50 meters - 24 meters for twice the width. And 50 - 24 = 26, which is twice the width. The 26 meters divided by 2 = 13 meters, which is the width of the rectangle.
0.0254 meters = 2.54 × 10-2 meters.