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Sagot :

Answer:

Step-by-step explanation:

To find the length of the pole, use Pythagorean theorem,

4.6m = 4.6*100 = 460 cm

hypotenuse² = base² + altitude²

altitude² = hypotenuse² - base²

               =460² - 280²

               =  211600 - 78400

               = 133200

altitude = √133200 = 364.97 cm

Length of the pole = 364.97 cm

b) Length of stair² = 95² + 364*94²

                              = 9025 + 133200

                              = 142225

Length of stair= √14225 = 377.13

Length of stair = 377.13 cm