Question 3:
The third angle of an
Edatasceles triangle is 16 less than the
Sum of the tro equal angles. Find three
angles of the triangle
Answers
Answered by
1
yes it's true
each of the equal angles ---- x
third angle ---- 2x - 16
x + x + 2x-16 = 180
take over
Hope it helps you
Answered by
1
Answer:
Step-by-step explanation:
angles x, y, and y.
x=-16+2y, and 180=x+2y.
Form the system,
(x-2y=-16)
(x+2y=180)
Cramer's Rule:
Matrix like
( 1 -2 -16 )
( 1 2 180 )
Denominator of each expression will be determinant, 1%2A2-%28-2%29%2A1=4
highlight%28x=%28-16%2A2-%28-2%29%2A180%29%2F4=82%29 degrees
highlight%28y=%281%2A180-%28-16%2A1%29%29%2F4=49%29 degree
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