Question

plz help me find the answer ​

Answer 1

Answer:

$\large \blue{ \fcolorbox{purple}{lavenderblush}{ \: \textsf{\ \ \ \ddag \ \ \ \pink{QUESTION}\ \ \ \ddag \ \ \ }}}$

Given :

• AD = 4 cm
• BD = 3 cm
• CB = 12 cm

Now, we will use Pythagoras Theorem

$\sf\green{\boxed{{AB}^{2} = {AD}^{2} + {BD}^{2}}}$

$\sf{\implies}$${AB}^{2} = 25$

$\sf{\implies}$AB = 5

$\sf\green{\boxed{{AC}^{2} = {AB}^{2} + {CB}^{2}}}$

$\sf{\implies}$${AC}^{2} = {5}^{2} + {12}^{2}$

$\sf{\implies}$${AC}^{2} = 169$

$\sf{\implies}$$AC = 13$

$\cot \: 0 \: = \frac{CB}{AB} = \sf\blue{\boxed{\frac{12}{5}}}$

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