Question

a ladder of 20m long reaches a window 10m above the ground. find the distance of the foot of the ladder from the base wall
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Answer 1

$\Huge{\boxed{\sf{\green{AnSwEr:}}}}$

ʟᴇɴɢᴛʜ ᴏғ ʟᴀᴅᴅᴇʀ = 20 ᴍ (ʜʏᴘᴏᴛᴇɴᴜꜱᴇ)

ʜᴇɪɢʜᴛ ᴏғ ᴡɪɴᴅᴏᴡ = 10 ᴍ (ᴘᴇʀᴘᴇɴᴅɪᴄᴜʟᴀʀ)

ʟᴇᴛ ᴛʜᴇ ᴅɪꜱᴛᴀɴᴄᴇ ᴏғ ʟᴀᴅᴅᴇʀ ғʀᴏᴍ ᴛʜᴇ ғᴏᴏᴛ ᴏғ ᴛʜᴇ ᴡᴀʟʟ = ɴ(ʙᴀꜱᴇ)

ᴀᴄᴄᴏʀᴅɪɴɢ ᴛᴏ ᴘʏᴛʜᴀɢᴏʀᴀs ᴛʜᴇᴏʀᴇᴍ :

$\sf\blue{(H)^2= (P)^2+(B)^2}$

$\sf\orange{ ({20 \: m)}^{2} = (10 \: m)^{2} + n^2}$

$\sf\red{ 400 \: {m}^{2} - 100 \: {m}^{2} = {n}^{2} }$

$\sf\blue{300 \: m^{2} = {n}^{2} }$

$\sf\pink{(There \: is \: no \: perfect \: root \: for \: 300 , so \: we \: will \: take \: approx. \: root) }$

$\sf\green{ {n}^{ \cancel2} = (17.32 \: )^{ \cancel2} }$

$\boxed{\sf{\purple{ n \: = 17.32 \: m}}}$

Answer 2

Answer:

थे आंसर इस इन द अटैचमेंट

होpe it helps