Answer:
Step-by-step explanation:
(a)
1st triangle: 6sqrt(3)cm/sin90 = EH/sin60
9cm/sin90
EH = 9cm
2nd triangle: 9cm/sin45 = TH/sin90
TH = 12.73cm
3rd triangle: AT^2 = (14cm)^2 - (12.73)^2
AT = 5.82cm
(b)
5.82cm/sin(angle) = 14cm/sin90
5.82cm/14cm = sin(angle)
angle = arcsin(5.82/14)
angle = 24.6
angle CHA is 24.6 + 45 + 90 = 159.6
