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meriva
2 years ago
11

ANSWER+EXPLANATION=100POINTS+BRAINLIEST

Mathematics
2 answers:
Lady bird [3.3K]2 years ago
7 0

Hope you could understand.

If you have any query, feel free to ask.

labwork [276]2 years ago
6 0

The proof that the area of the trapezium is 2x² + x -351 = 0 can be seen in the image attached below.

<h3>What is a trapezium?</h3>

A trapezium is a quadrilateral that has a pair of opposite parallel sides.

From the given diagram:

The area of the trapezium can be computed as;

\mathbf{= \dfrac{1}{2} \times (sum  \ of \  the \  parallel \  sides) \times height }

\mathbf{351= \dfrac{1}{2} \times (x-4 + x +5) \times 2x  }

\mathbf{351= \dfrac{1}{2} \times (2x+1) \times 2x  }

\mathbf{351=  (2x+1) \times x  }

351 = 2x² + x

2x² +x - 351 = 0    : Proved

Learn more about the area of trapezium here:
brainly.com/question/16904048

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