Tolong bantuin Kak Plis 3 sama 4Aja #entarguatandai paling bagus deh kak #makasih sebelumnya

3.)
C = 180 - a - b
C = 180 - 46 - 70 = 64

Q = 180 - p - r
Q = 180 - 46 - 64 = 70

A = p = 46
B = Q = 70
C = r = 64

4.)
Ab = 5cm
Ac = 4cm
Pq = 7,5cm
Qr = 6cm

Ab/pq = ac/qr
Ab(qr) = ac(pq)
5(6) = 4(7,5)
30 = 30
1 = 1

Terbukti

Nb = "1 = 1" artinya betul