Math, asked by toantinhlau1669, 1 year ago

Hypotenuse of a right angled triangle is 2 less than 3 times its shortest side. If the remaining side is 2 more than twice the shortest side, find the area of the triangle.

Answers

Answered by BEJOICE
39

let \:  \: the \:  \: shortest \:  \: side \:  \: be \:  \: x \\ then \:  \: hypotenuse = 3x - 2 \\ remaining \:  \: side = 2x + 2 \\ for \:  \: right \:  \: angled \:  \: triangle \\  {x}^{2}  +  {(2x + 2)}^{2}  =  {(3x - 2)}^{2}  \\  {x}^{2}  + 4 {x}^{2}  + 8x + 4 = 9 {x}^{2}  - 12x + 4 \\ 4 {x}^{2}  - 20x = 0 \\ 4x(x - 5) = 0 \\ x = 5 \\  \\ area \:  \: of \:  \: triangle \:  =  \frac{1}{2}  \times x \times (2x + 2) \\  =  \frac{1}{2}  \times 5 \times 12 = 30
Answered by harshu0104
4

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