Apply Pythagoras to the sides as inches, ie 285 and 190,
then diagonal = sqrt(2852 + 1902)
= sqrt (81225 + 36100)
= sqrt 117325
= 342.52 in
= 28 feet 6½ inches
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A rectangle doesn't have a hypotenuse.The diagonal of this one is sqrt(6,100) = 78.1025 (rounded)
Half of a rectangle is a right angled triangle. Pythagoras! Hyp squared = 6 squared + 40 squared = 36 + 1600 = 1696 so Hypotenuse = sqrt 1696 = 41.18252
By using the trigonometric ratios of Sine and Cosine. The diagonal forms the hypotenuse of a right angled triangle with the length and width of the rectangle forming the other two sides of the triangle - the adjacent and opposite sides to the angle. Then: sine = opposite/hypotenuse → opposite = hypotenuse x sine(angle) cosine = adjacent/hypotenuse → adjacent = hypotenuse x cosine(angle)
Two isosceles right triangles, if joined hypotenuse-to-hypotenuse will make a square. Two squares, sided by side, make a rectangle which is a parallelogram, and not a square.
Hmmm. the triangle you describe is HALF of a rectangle...