Question

In triangle ABC, angle A is equal to 70 degree , AB is equal to 5.5cm AC is also equal to 5.5 cm then find angle ABC and angle BCA

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Answer 1

Answer:

ᴛᴏ ᴄᴏɴsᴛʀᴜᴄᴛ: ᴀ ʟɪɴᴇ, ᴘᴀʀᴀʟʟᴇʟ ᴛᴏ ɢɪᴠᴇɴ ʟɪɴᴇ ʙʏ ᴜsɪɴɢ ʀᴜʟᴇʀ ᴀɴᴅ ᴄᴏᴍᴘᴀssᴇs.

sᴛᴇᴘs ᴏғ ᴄᴏɴsᴛʀᴜᴄᴛɪᴏɴ:

(ᴀ) ᴅʀᴀᴡ ᴀ ʟɪɴᴇ-sᴇɢᴍᴇɴᴛ ᴀʙ ᴀɴᴅ ᴛᴀᴋᴇ ᴀ ᴘᴏɪɴᴛ ᴄ ᴏᴜᴛsɪᴅᴇ ᴀʙ.

(ʙ) ᴛᴀᴋᴇ ᴀɴʏ ᴘᴏɪɴᴛ ᴅ ᴏɴ ᴀʙ ᴀɴᴅ ᴊᴏɪɴ ᴄ ᴛᴏ ᴅ.

(ᴄ) ᴡɪᴛʜ ᴅ ᴀs ᴄᴇɴᴛʀᴇ ᴀɴᴅ ᴛᴀᴋᴇ ᴄᴏɴᴠᴇɴɪᴇɴᴛ ʀᴀᴅɪᴜs, ᴅʀᴀᴡ ᴀɴ ᴀʀᴄ ᴄᴜᴛᴛɪɴɢ ᴀʙ ᴀᴛ ᴇ ᴀɴᴅ ᴄᴅ ᴀᴛ ғ.

(ᴅ) ᴡɪᴛʜ ᴄ ᴀs ᴄᴇɴᴛʀᴇ ᴀɴᴅ sᴀᴍᴇ ʀᴀᴅɪᴜs ᴀs ɪɴ sᴛᴇᴘ , ᴅʀᴀᴡ ᴀɴ ᴀʀᴄ ɢʜ ᴄᴜᴛᴛɪɴɢ ᴄᴅ ᴀᴛ ɪ.

(ᴇ) ᴡɪᴛʜ ᴛʜᴇ sᴀᴍᴇ ᴀʀᴄ ᴇғ, ᴅʀᴀᴡ ᴛʜᴇ ᴇǫᴜᴀʟ ᴀʀᴄ ᴄᴜᴛᴛɪɴɢ ɢʜ ᴀᴛ ᴊ.

(ғ) ᴊᴏɪɴ ᴊᴄ ᴛᴏ ᴅʀᴀᴡ ᴀ ʟɪɴᴇ ʟ.

ᴛʜɪs ɪs ᴛʜᴇ ʀᴇǫᴜɪʀᴇᴅ ʟɪɴᴇ ᴀʙ || ʟ.