Answer:
90 degrees
3x + 3 = 90
x = 29
Step-by-step explanation:
(3x + 3) means the angle at K, I assume.
the angles IKH and JKH are the same and 90 degrees each, as the height stands perpendicular on the side JI.
so,
3x = 87
In the given triangle HIJ,
HK is the altitude (by the definition of the altitude of a triangle)
Therefore, m∠HKI = m∠HKJ = 90°
Equation for the given angles will be,
(3x + 3)° = 90°
