jawab ya please!!!!!!

7x + 5x = 180.
12x = 180.
x = 180/12.
x = 15.

∠K = ∠M = 5x = 5(15) = 75.

< L : < M = 7 : 5
< L + < M = 180*
jumlah perbandingan = 7 + 5 = 12

< L = 7/12 × 180* = 105*
< M = 5/12 × 180* = 75*

besar < K = < M , maka < K = 75*

catatan: * artinya derajat