Question

Please help me on this problem :( please

Answer 1

11.48913

Explanation:
A = V
B = X
C = D

Calculates b, ∠A, and ∠B based on given c, a, and ∠C.

∠A = arcsin
`((a·sin(C))/(c))` = 0.33984 rad = 19.471° = 19°28'16"

∠B = 180° - C - A = 1.23096 rad = 70.529° = 70°31'44"

b =
`(c·sin(B))/(sin(C))` = 11.31371 = 8
`√(2)`

Area =
`(ab·sin(C))/(2\\)` = 22.62742

Perimeter p = a + b + c = 27.31371

Semiperimeter s =
`(a + b +c)/(2)` = 13.65685

Height ha =
`(2×Area)/(a)` = 11.31371

Height hb =
`(2×Area)/(b)` = 4

Height hc =
`(2×Area)/(c)`= 3.77124

Median ma =
`√((a/2)2 + c2 - ac·cos(B))` = 11.48913

Median mb =
`√((b/2)2 + a2 - ab·cos(C))` = 6.9282

Median mc =
`√(√(c/2)2 + b2 - bc·cos(A))` = 6

Inradius r =
`(Area)/(s)` = 1.65685

Circumradius R =
`(a)/(2sin(A))` = 6

Answer 2

Explanation: