Question

Bantu nomor 11, 12, 14 yaa pake cara

Answer 1

11. A ke GC = AC
AC = diagonal bidang
= 12akar 2
12.
14. TA dan Bidang ABCD = sudut TAB

sudut TAB = cos x
cos x = 1/2 × AB : TA
= 1/2 × 6 : 6 akar 2
= 3 : 6 akar 2
cos x = 1/2 akar 2
cos x = 45 derajat...