jihadijeff9
contestada

A
,
B
and
C
form a triangle where
∠
B
A
C
=
90
∘
.
A
B
=
12.1
mm and
B
C
=
19.7
mm.
Find the length of
A
C
, giving your answer rounded to 1 decimal place.

Respuesta :

mhanifa

Answer:

  • 15.5 mm

Step-by-step explanation:

Given:

  • ΔABC with ∠BAC = 90°, AB = 12.1 mm, BC = 19.7 mm

Since BC is opposite to right angle, AC is the missing leg.

Find AC using Pythagorean:

  • [tex]AC = \sqrt{BC^2-AB^2} =\sqrt{19.7^2-12.1^2} =\sqrt{241.68} =15.5 mm[/tex]

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