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3 years ago

A right angle has a leg of 12 cm and a hypotenuse of 19 cm. What is the length of the other leg?

1 answer:

6 0

H^2 = x^2 + y^2

where h is the hypotenuse, x and y are the legs.
h = 19cm
x = 12cm.
y = ?

h^2 = x^2 + y^2
y^2 = h^2 - x^2
y^2 = 19^2 - 12^2
y^2 = 361 - 144
y^2 = 217
y = sqrt(217)
y = 14.7

Letter B

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