1.

Find the angles of the triangle whose sides arex + y - 4 = 0, 2x + y - 6 = 0 and 5x + 3y - 15 = 0.​

Answer»

ANSWER:

Step-by-step explanation:

1) X+y-4=0

2) 2x+y-6=0

3) 5X+3y-15=0

By solving 1 and 2

2x+y-6=0

x + (x + y) = 6

x + 4= 6

x = -2 & y = 4-x = 6

By solving 2 and 3

2x+y-6=0 Or 6x +3y -18 = 0

5x+3y-15=0

x =3 & y = 0

Again, solving 1 and 3

x + y = 4 or 5x + 5y = 20

5x+3y=15

y = 2.5

x = 1.5



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