A right angle has a leg of 12 cm and a hypotenuse of 19 cm. What is the length of the other leg?
A. 7.0
B. 14.7
C. 22.5
D. 217.0

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09-05-2017
Mathematics

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A right angle has a leg of 12 cm and a hypotenuse of 19 cm. What is the length of the other leg?
A. 7.0
B. 14.7
C. 22.5
D. 217.0

Respuesta :

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EEPJR EEPJR · Answer 1 · 2017-05-09T08:33:21+02:00

EEPJR EEPJR

09-05-2017

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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A right angle has a leg of 12 cm and a hypotenuse of 19 cm. What is the length of the other leg? A. 7.0 B. 14.7 C. 22.5 D. 217.0

Respuesta :

Otras preguntas

A right angle has a leg of 12 cm and a hypotenuse of 19 cm. What is the length of the other leg?
A. 7.0
B. 14.7
C. 22.5
D. 217.0