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Find the area of the hexagon whose conse...

Find the area of the hexagon whose consecutive vertices are `(5, 0), (4, 2), (1, 3), (-2, 2), (-3, -1) and (0, -4)`

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To find the area of the hexagon with the given vertices, we can use the formula for the area of a polygon based on its vertex coordinates. The formula is: \[ \text{Area} = \frac{1}{2} \left| \sum_{i=1}^{n} (x_i y_{i+1} - y_i x_{i+1}) \right| \] where \( (x_{n+1}, y_{n+1}) \) is the same as \( (x_1, y_1) \) to close the polygon. ### Step-by-Step Solution: 1. **List the Coordinates**: The vertices of the hexagon are given as: - \( A(5, 0) \) - \( B(4, 2) \) - \( C(1, 3) \) - \( D(-2, 2) \) - \( E(-3, -1) \) - \( F(0, -4) \) 2. **Set Up the Formula**: We will apply the area formula for the vertices \( A, B, C, D, E, F \). We will also repeat the first vertex at the end: - \( (5, 0), (4, 2), (1, 3), (-2, 2), (-3, -1), (0, -4), (5, 0) \) 3. **Calculate the Determinants**: Using the formula, we calculate: \[ \text{Area} = \frac{1}{2} \left| (5 \cdot 2 + 4 \cdot 3 + 1 \cdot 2 + (-2) \cdot (-1) + (-3) \cdot (-4) + 0 \cdot 0) - (0 \cdot 4 + 2 \cdot 1 + 3 \cdot (-2) + 2 \cdot (-3) + (-1) \cdot 0 + (-4) \cdot 5) \right| \] 4. **Perform the Multiplications**: - First part: - \( 5 \cdot 2 = 10 \) - \( 4 \cdot 3 = 12 \) - \( 1 \cdot 2 = 2 \) - \( -2 \cdot -1 = 2 \) - \( -3 \cdot -4 = 12 \) - \( 0 \cdot 0 = 0 \) - Sum of first part = \( 10 + 12 + 2 + 2 + 12 + 0 = 38 \) - Second part: - \( 0 \cdot 4 = 0 \) - \( 2 \cdot 1 = 2 \) - \( 3 \cdot -2 = -6 \) - \( 2 \cdot -3 = -6 \) - \( -1 \cdot 0 = 0 \) - \( -4 \cdot 5 = -20 \) - Sum of second part = \( 0 + 2 - 6 - 6 + 0 - 20 = -30 \) 5. **Combine the Results**: \[ \text{Area} = \frac{1}{2} \left| 38 - (-30) \right| = \frac{1}{2} \left| 38 + 30 \right| = \frac{1}{2} \left| 68 \right| = \frac{68}{2} = 34 \] 6. **Final Result**: The area of the hexagon is \( 34 \) square units.
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ARIHANT MATHS ENGLISH-COORDINATE SYSTEM AND COORDINATES -Exercise For Session 3
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  5. The vertices of a triangle are A(0, 0), B(0, 2) and C(2, 0). The dista...

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  6. Area of the triangle with vertices (a, b), (x1,y1) and (x2, y2) where ...

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  8. The vertices of a triangle are (6, 0), (0, 6) and (6, 6). The distance...

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  9. The centroid of the triangle with vertices (1, sqrt(3)), (0, 0) and (2...

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  10. The vertices of a triangle are (0, 0), (1,0) and (0,1). Then excentre ...

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  11. If alpha, beta gamma are the real roots of the equation x^(3)-3px^(2)+...

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  12. If (1,4) is the centroid of a triangle and the coordinates of its a...

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  13. Find the coordinates of the orthocentre of the triangle whose vertices...

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  14. Show that the area of the triangle with vertices (lambda, lambda-2), (...

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  15. Prove that the points (a ,b+c),(b ,c+a)a n d(c ,a+b) are collinear.

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  16. Prove that the points (a, b), (c, d) and (a-c, b-d) are collinear, if ...

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  17. If the points (x1, y1),(x2,y2), and (x3, y3) are collinear show that (...

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  18. The coordinates of points A,B,C and D are (-3, 5), (4, -2), (x, 3x) an...

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  19. Find the area of the hexagon whose consecutive vertices are (5, 0), (4...

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