Mathematics: (probabilitie) explain it as i need it for revision.

(probabilitie) explain it as i need it for revision.

myamiller558

12.01.2022

see explanation

Step-by-step explanation:

(a)

Using Pythagoras' identity in right triangle ABC, that is

AC² = AB² + BC² = 3² + 5² = 9 + 25 = 34 ( take the square root of both sides )

AC = $\sqrt{34}$ ≈ 5.83 cm

(b)

Using the tangent ratio in right triangle ACD

tanACD = $\frac{opposite}{adjacent}$ = $\frac{AD}{AC}$ = $\frac{4}{5.83}$ , thus

∠ACD = $tan^{-1}$ ( $\frac{4}{5.83}$ ) ≈ 34.5°

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mamaditto9480

12.01.2022

answer:

which are you talking about i don't see a choice

Step-by-step explanation:

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