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jasenka [17]
3 years ago
12

The area of a rectangle is 64 square centimeters. The rectangle is 4 centimeters wide. How long is the rectangle.

Mathematics
1 answer:
VLD [36.1K]3 years ago
4 0
The Area is the width<span> times the </span>height<span>: A = w x h;
Then, 64 = w x h;
h = 4 + w;
64 = 4w  + w^2;
w^2 + 4w - 64 = 0;
We solve this equation: w1 </span>≈ 6,24 > 0 (okay); w2 ≈ - 10,24 < 0 (not okay);
<span>Finally, h1 </span>≈ 10,24;<span>

</span>
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