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29 April, 15:35

What is the length of the unknown leg in the right triangle?

25 m

20 m

O v5 m

O 5m

O 145 m

15 m

+5
Answers (1)
  1. 29 April, 16:56
    0
    The length of the unknown leg is 15m

    Step-by-step explanation:

    To calculate the unknown leg we need to use Pythagoras

    h = hyoptenuse = 25m

    a = leg 1 = 20m

    b = leg 2

    h² = a² + b²

    we replace with the known values

    (25m) ² = (20m) ² + b²

    625m² = 400m² + b²

    625m² - 400m² = b²

    225m² = b²

    √225m² = b

    15m = b

    The length of the unknown leg is 15m
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