Respuesta :

musiclover10045

Using the Pythagorean theorem:

25^2 = 20^2 + b^2

625 = 400 + b^2

b^2 = 625 - 400

b^2 = 225

b = 15


The answer is d. 15m

b^2 = 25^2 -29^2    ( by Pythagoras)

b^2 = (25+20)(25-20)

b^2 =  225

b = √225  = 15 m  answer

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