Answers for question 4:
GI = 4.95cm
Answers for question 5:
HT = 17
∠T = 28
∠H = 62
Step-by-step explanation for question #5:
a^2 +b^2 = c^2
15^2 +8^2=c^2
225 + 64=c^2
289 = c^2 (now square root both)
17 = c
HT = 17
∠H
sin(o/h)=
Sin(8/17)=61.9
(rounded)
∠H = 62°
∠T
sin(o/h)=
sin(15/17)=28.072
rounded
∠T = 28°