Question

In an isosceles triangle, the vertex angle is twice either base angle. (Let the base angle be b in degrees. Remember that the sum of angles of a triangle is 180 degrees).
*No words to say aarush*
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Answer 1

Answer:

*ʜᴀʏᴇᴇᴇᴇᴇᴇᴇᴇᴇᴇᴇᴇᴇᴇᴇ*

ʟᴀᴋsʜᴍɪ’s ғᴀᴛʜᴇʀ ɪs ʏᴇᴀʀs ᴏʟᴅᴇʀ ᴛʜᴀɴ ᴛʜʀᴇᴇ ᴛɪᴍᴇs ᴏғ ʜᴇʀ ᴀɢᴇ

= × ʟᴀxᴍɪ’s ᴀɢᴇ + = ᴀɢᴇ ᴏғ ʟᴀᴋsʜᴍɪ’s ғᴀᴛʜᴇʀ

= ( × ʏ) + =

= ʏ + =

Answer 2

Explanation:

$\huge\mathfrak\orange{★ANSWER★}$

Since the sum of the interior angles of any triangle adds up to 180∘ and also the base angles of an isosceles triangle are equal,we may let the base angles be

x , then the vertex angle is 2x .

∴x+x+2x=180∘ .

∴x=45∘ .Therefore the vertex angle is 90∘.