tolong jawabb makasiih..

1.
a)
c2 = a2 + b2
17kuadrat = 12 kuadrat + b2
b2 = 17 kuadrat - 12kuadrat
b2 = 289 - 144 = v145
b2 = v145
b)
17 + 12 + v145 =
29 + v145
C)
1/2 x a x t
1/2 x 12 x v145
6v145

2.
a)
ps = 10: 2= 5
rs = 5
c2 = a2 + b2
13kuadrat = 5 kuadrat + b2
169 = 25 + b2
b2 = 169 -25
b2 = 144
b = v144
b=12
Rs = 12 
b) 13 + 13 + 10 = 36
c) 1/2 x a x t
1/2 x 12 x 10
60