Answer:
Tan D = 7 / 4
Sin D = 7 / 8.1
Cos D = 4 / 8.1
IG = 4.95 Cm
Step-by-step explanation:
In question number 3
Tan D = Perpendicular / Base
Tan D = 7 / 4
Sin D = Perpendicular / hypotenuse
Sin D = 7 / 8.1
Cos D = Base / hypotenuse
Cos D = 4 / 8.1
In question number 4
Tan 68° = IG / GH
2.475 = IG / 2
IG = 4.95 Cm
