Question

In the given triangle ABC ,AD is perpendicular to BC . AB = 13cm ,BD =5cm ,DC = 4cm
Find the value of :
(i) AD
(ii) tanx°+cot y°

Answer 1

Answer:

Step-by-step explanation:

Give the diagram to give the exact solution

As per me the length of AD=12cm

Answer 2

AD= 12 cm

Step-by-step explanation:

Given triangle ABC,

let BC is the base of triangle and A pint is at the top

draw a triangle ABC and perpendicular from A to the base BC, we will get two triangles 1) ABD and 2) ADC

In ΔABD using pythagoras theorem,

$(AB)^{2}= (BD)^{2}+(AD)^{2}$

$(13)^{2}= (5)^{2}+(AD)^{2}$

$169-25= (AD)^{2}$

$144=(AD)^{2}$

$12cm= AD$

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