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Question Number 73901 by azizullah last updated on 16/Nov/19

Answered by $@ty@m123 last updated on 16/Nov/19

42 m

$$\mathrm{42}\:{m} \\ $$

Commented by azizullah last updated on 16/Nov/19

sir need work and solution.

$$\boldsymbol{\mathrm{sir}}\:\boldsymbol{\mathrm{need}}\:\boldsymbol{\mathrm{work}}\:\boldsymbol{\mathrm{and}}\:\boldsymbol{\mathrm{solution}}. \\ $$

Answered by $@ty@m123 last updated on 16/Nov/19

Let AB be a tower. (Draw it.) Let BC=42 m ATQ ∠ACB=45^o ⇒ ∠BAC=45^o ⇒AB=BC ⇒AB=42 m

$${Let}\:{AB}\:{be}\:{a}\:{tower}.\:\left({Draw}\:{it}.\right) \\ $$$${Let}\:{BC}=\mathrm{42}\:{m}\: \\ $$$${ATQ} \\ $$$$\angle{ACB}=\mathrm{45}^{\mathrm{o}} \\ $$$$\Rightarrow\:\angle{BAC}=\mathrm{45}^{\mathrm{o}} \\ $$$$\Rightarrow{AB}={BC} \\ $$$$\Rightarrow{AB}=\mathrm{42}\:{m} \\ $$

Commented by azizullah last updated on 17/Nov/19

thanks alot sir G

$$\:\:\:\:\:\mathrm{thanks}\:\mathrm{alot}\:\mathrm{sir}\:\mathrm{G} \\ $$

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