Question

the perimeter of a rectangle is 80 metres and it's length is one metre more than twice the breadth. What are its length and breadth​

Answer 1

Answer:

why so serious????!!????

Answer 2

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ɢɪᴠᴇɴ :-

ᴘᴇʀɪᴍᴇᴛᴇʀ ᴏꜰ ᴛʜᴇ ʀᴇᴄᴛᴀɴɢʟᴇ = 80ᴍ

ᴀᴛQ, ʟᴇɴɢᴛʜ ᴏꜰ ᴛʜᴇ ʀᴇᴄᴛᴀɴɢʟᴇ ɪꜱ ᴏɴᴇ ᴍᴏʀᴇ ᴍᴇᴛᴇʀ ᴛʜᴀɴ ᴛᴡɪᴄᴇ ɪᴛ'ꜱ ʙʀᴇᴀᴅᴛʜ.

ʟᴇᴛ ᴛʜᴇ ʙʀᴇᴀᴅᴛʜ ᴏꜰ ᴛʜᴇ ʀᴇᴄᴛᴀɴɢʟᴇ ʙᴇ x

ᴛʜᴇʀᴇꜰᴏʀᴇ ɪᴛ'ꜱ ʟᴇɴɢᴛʜ ᴡɪʟʟ ʙᴇ = 2x + 1

ꜰᴏʀᴍᴜʟᴀ ᴛᴏ ꜰɪɴᴅ ᴛʜᴇ ᴘᴇʀɪᴍᴇᴛᴇʀ ᴏꜰ ᴀ ʀᴇᴄᴛᴀɴɢʟᴇ ɪꜱ 2(ʟ + ʙ)

ꜱᴏ ᴡᴇ ᴄᴀɴ ᴡʀɪᴛᴇ,

➡ 2(ʟ + ʙ) = 80 ᴍᴇᴛᴇʀꜱ

ᴘᴜᴛᴛɪɴɢ ᴠᴀʟᴜᴇ ᴏꜰ ʙ ᴀɴᴅ ʟ,

➡ 2(2x + 1 + x) = 80ᴍ

➡ 3x + 1 = 80/2

➡ 3x = 40 - 1

➡ x = 39/3

➡ x = 13ᴍ

ʜᴇɴᴄᴇ,

ʙʀᴇᴀᴅᴛʜ ᴏꜰ ᴛʜᴇ ʀᴇᴄᴛᴀɴɢʟᴇ = x

= 13ᴍ

ᴀɴᴅ ʟᴇɴɢᴛʜ ᴏꜰ ᴛʜᴇ ʀᴇᴄᴛᴀɴɢʟᴇ = 2x + 1

= 2(13) + 1

= 27ᴍ