Question

construct ∆XYZ such that XY=6.7cm,YZ= 5.8 cm, XZ=6.9cm . Construct its incircle.
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it is very urgent!!​

Answer 1

❥คɴᎦᴡєя

Sᴛᴇᴘs ᴏғ Cᴏɴsᴛʀᴜᴄᴛɪᴏɴ:

1.Cᴏɴsᴛʀᴜᴄᴛ △XYZ ᴏғ ɢɪᴠᴇɴ ᴅɪᴍèɴsɪᴏɴs.

2.Dʀᴀᴡ ʙɪsᴇᴄᴛᴏʀs ᴏғ ᴛᴡᴏ ᴀɴɢʟᴇs, ∠X ᴀɴᴅ ∠Y.

3.Dᴇɴᴏᴛᴇ ᴛʜᴇ ᴘᴏɪɴᴛ ᴏғ ɪɴᴛᴇʀsᴇᴄᴛɪᴏɴ ᴀs O.

4.Dʀᴀᴡ ᴘᴇʀᴘᴇɴᴅɪᴄᴜʟᴀʀ OA ᴏɴ XY.

5.Dʀᴀᴡ ᴀ ᴄɪʀᴄʟᴇ ᴡɪᴛʜ O ᴀs ᴄᴇɴᴛᴇʀ ᴀɴᴅ OA ᴀs ʀᴀᴅɪᴜs.

Answer 2

Answer:

here is your answer

List of numbers becomes 5, 7, 9. 11, …

Here,7 – 5 = 9 – 7 = 11 – 9 = 2 and soon. So, it forms an A.P. with common difference d = 2.

To find S24, we have n = 24, a = 5, d = 2.

S24 = (24/2) [2 x 5 + (24 – 1) x 2] = 12 [10 + 46] = 672

So, sum of first 24 terms of the list of numbers is 672.