A pyramid with a square base has how many faces?
1 answer:
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<u>QUESTION :</u>
Find the given value of each angle for the following supplementary angles must add up to 180
- one angle = (5x-13)°
- another angle = (11x+65)°
- value of each angle
➱<em>ᴛʜᴇ ᴛᴡᴏ ᴀɴɢʟᴇs ʟɪᴇs ᴏɴ ᴛʜᴇ sᴀᴍᴇ ʟɪɴᴇ</em>
➱ѕσ ѕυм σƒ вσтн тнє αηgℓєѕ = 180°
therefore ,
⤳(5x-13)° + (11x+65)° = 180°
⤳5x -13° + 11x + 65° = 180°
⤳16x + 52° = 180°
⤳16x = 180° - 52°
⤳16x = 128°
⤳x = 128 /16
hence ,
the two angles will be
⇛<u>ᴏɴᴇ ᴀɴɢʟᴇ</u> :
<em>➛</em>(5x-13)°
<em>➛</em>5(8) - 13
<em>➛</em>40 - 13
⇛<u>ᴀɴᴏᴛʜᴇʀ ᴀɴɢʟᴇ</u> :
<em>➛</em><em> </em>(11x+65)°
<em>➛</em>11(8)+65
<em>➛</em>88 + 65