Tolong di jawab ya, diketahui ΔPQR dengan panjang PQ= 40cm, PR=58cm dan QR= 42cm. panjang jari jari lingkaran luar ΔPQR adalah...
arafahdira
1. PQ/EP = AP/PR 2. EP = PQ x PR/AP = 2r 3. L ΔPQR = QR x AP/2 AP = 2L/QR 2r = PQ x PR/ 2r = PQ x QR x PR/2L r = PQ x QR x PR /4L r = 40 x 42 x 58/4L r = 97440/24360 r = 4
2. EP = PQ x PR/AP = 2r
3. L ΔPQR = QR x AP/2
AP = 2L/QR
2r = PQ x PR/
2r = PQ x QR x PR/2L
r = PQ x QR x PR /4L
r = 40 x 42 x 58/4L
r = 97440/24360
r = 4