Luas KLM adalah cm² A.9 √30 B.14√30 C.18√30 D.28√30

B,,14 akar 30,,maaf gak pake cara

panjang 1/2 alas
= 14/2
= 7 cm

13² = 7² + t²
169 = 49 + t²
t² = 169 - 49
t² = 120
t = √120
t = √4x30
t = 2√30 cm

L = 1/2 x a x t
L = 1/2 x 14 x 2√30
L = 14 x √30
L = 14√30 cm