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igor_vitrenko [27]
3 years ago
8

What is the length of the missing leg

Mathematics
1 answer:
sp2606 [1]3 years ago
8 0

Answer:

4.33

Step-by-step explanation:

1. Pythagoras Theorem

25 = \sqrt{3^{2}+b^{2}}

2. Find b

5 = 3^{2}+b^{2}

b^{2} = 5-3^{2} = 5-9 = -4

but sqrt(-4) is not possible

b ≅ 4

OR (Require trig knowledge)

1. Sine Rule

\frac{a}{sin\alpha}=\frac{b}{sin\beta}=\frac{c}{sin\pi }

2. Plug in numbers

\frac{5}{sin90}=\frac{b}{sin60}=\frac{3}{sin30}

b ≅ 4.33

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