Question

Find the value of x​

Answer 1

40+60+x= 180

100+x= 180

x= 80

Answer 2

☆ᴀɴsᴡᴇʀ:

ʟᴇᴛ ᴛʜᴀᴛ ᴀɴɢʟᴇs ʙᴇ ᴀ, ʙ ᴀɴᴅ ᴄ.

ᴛʜᴇʀᴇғᴏʀᴇ,

<ᴀ= 40°

<ʙ=60°

<ᴄ=x°

ɴᴏᴡ ʟᴇᴛ's ғɪɴᴅ ᴛʜᴇ <ᴄ!

sɪɴᴄᴇ,

ᴡᴇ ᴋɴᴏᴡ ᴛʜᴀᴛ,

sᴜᴍ ᴏғ ᴀʟʟ ᴀɴɢʟᴇs ᴏғ ᴀ ᴛʀɪᴀɴɢʟᴇ

ɪs 180°

: . <ᴀ+<ʙ+<ᴄ=180°

: . 40°+60°+x=180°

: . 100°+ x =180°

: . x = 180°-100°

: . x= 80°

So, ᴛʜᴇ ᴠᴀʟᴜᴇ ᴏғ x ɪs 80°.