45.2
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450
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Rounded to the nearest whole number, 452.16 is approximately equal to 452.
42.5%
# 4 and 6 give a hypotenuse of √(42 + 62) = √(16 + 36) = √52 = 7.2111 = 7.2 to nearest tenth. # 9 and X give a hypotenuse of 15 so 152 = 92+ X2 which gives 225 = 81 + X2 which gives 144 = X2 which gives 12 = X # 36 and Y give a hypotenuse of 39 so 392 = 362+ Y2 which gives 1521 = 1296 + Y2 which gives 225 = Y2 which gives 15 = Y # 28 and 45 give a hypotenuse of √(262 + 452) = √(676 + 2025) = √2701 = 51.9711 = 52 to the nearest tenth.