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Sergio039 [100]
2 years ago
13

Find the Area of the shaded part.

Mathematics
1 answer:
Westkost [7]2 years ago
4 0

To find the area of the shaded part we have to subtract the rectangle area from the triangle area :

s =  \frac{1}{2}  \times (8x + 2)(6x) - (x)(3x + 1) \\

s =  \frac{1}{2}  \times (48 {x}^{2}  + 12x) - (3 {x}^{2}  + x) \\

s =  \frac{48}{2}  {x}^{2}  +  \frac{12}{2} x - 3 {x}^{2}  - x \\

s = 24 {x}^{2}  + 6x - 3 {x}^{2}  - x

s = 24 {x}^{2}  - 3 {x}^{2}  + 6x - x

s = 21 {x}^{2}  + 5x

And we're done

Have a great day ♡

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