Question

Three angles of a quadrilateral are 55 110 , and 72
. The fourth angle is .

Answer 1

Let the fourth angle be x

x + 55° + 110° + 72° = 360°

x + 237° = 360°

x = 360° - 237°

x = 123°

The fourth angle is 123°.

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Answer 2

Step-by-step explanation:

ɪɴ ᴀ ǫᴜᴀᴅʀɪʟᴀᴛᴇʀᴀʟ ,

ᴡᴇ ᴋɴᴏᴡ ,

ᴀɴɢʟᴇ ᴀ + ᴀɴɢʟᴇ ʙ + ᴀɴɢʟᴇ ᴄ + ᴀɴɢʟᴇ ᴅ = 360°

=> 55° + 110° + 72° + ᴀɴɢʟᴇ ᴅ = 360°

=> 237° + ᴀɴɢʟᴇ ᴅ = 360°

=> ᴀɴɢʟᴇ ᴅ = 123°