emfrue
emfrue
29-07-2018
Mathematics
contestada
find x. help please!:(
Respuesta :
ashtonjboviallpcj6tf
ashtonjboviallpcj6tf
29-07-2018
∆=180°
one corner is a right angle which is 90°
assuming both other corners are identical they will each be 45°
(45°-3°)÷6=X
42°÷6=X
7=X
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rachelpinto17
rachelpinto17
29-07-2018
Since sides AB and AC are equal
Therefore,angleB=angleC (angles opposite to equal sides are equal)
Now,angleB=angleC=6x+3
So,angle sum property of a triangle =180 degrees.
=>90+6x+3+6x+3=180
=>96+12x=180
=>12x=84
=>x=7
Answer Link
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