We divide 72/96 which the answer is 0.75 or 75%
3x - y = 10 . . . (1)
-x + y = 12 . . . (2)
(1) + (2) => 2x = 22 => x = 22/2 = 11
From 2, -11 + y = 12 => y = 12 + 11 = 23
HL postulate.
Step-by-step explanation:
In the given triangles,
- Angle ADC = Angle BDC ( 90° )
hence, the triangles are congruent by HL postulate .
the answer is 90° degree angle
