Question

please give me the answer ​

Answer 1

❥︎Aɴsᴡᴇʀ:-

Lᴇɴɢᴛʜ ᴏғ ᴛʜᴇ ʀᴇᴄᴛᴀɴɢᴜʟᴀʀ ʙᴏx = 50 ᴄᴍ

Bʀᴇᴀᴅᴛʜ ᴏғ ᴛʜᴇ ʀᴇᴄᴛᴀɴɢᴜʟᴀʀ ʙᴏx = Lᴇɴɢᴛʜ × Bʀᴇᴀᴅᴛʜ

= 50 × 30 = 1500 ᴄᴍ²

Nᴏᴡ,

Lᴇᴛ ᴛʜᴇ ʟᴇɴɢᴛʜ ᴏғ ᴛʜᴇ ᴛᴀᴘᴇ ʙᴇ = x ᴄᴍ

Aʀᴇᴀ ᴏғ ᴛʜᴇ ᴛᴀᴘᴇ = Aʀᴇᴀ ᴏғ ᴛʜᴇ ᴛᴀᴘᴇ ᴏғ ᴛʜᴇ ʙᴏx

Sᴏ, x × 17 = 1500

➪ 17x = 1500

➪ x = 17/1500 ᴄᴍ²

★ Iᴍᴘᴏʀᴛᴀɴᴛ Fᴏʀᴍᴜʟᴀs:-

• Aʀᴇᴀ ᴏғ ᴀ sǫᴜᴀʀᴇ = sɪᴅᴇ × sɪᴅᴇ = (sɪᴅᴇ)²
• Aʀᴇᴀ ᴏғ ᴀ ᴛʀɪᴀɴɢʟᴇ = 1/2 × ʟ × ʙ × ʜ
• Aʀᴇᴀ ᴏғ ᴀ ʀᴇᴄᴛᴀɴɢʟᴇ = Lᴇɴɢᴛʜ × Bʀᴇᴀᴅᴛʜ = ʟ × ʙ
• Aʀᴇᴀ ᴏғ ᴀ ᴄɪʀᴄʟᴇ = πr²

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