Question

dau coroană Rezolvați până mâine vă rog frumos ​

Answer 1

Răspuns:

a) m(A)=90°, m(C)=30° => m(B)=180°-(90°+30°)=180°-120°=60°

BC=20cm

BC=med

=> AM=BC/2=20/2=10cm

m(C)=30° => T 30° ca AB=BC/2=10cm

b) m(A)=90°, m(B)=60° => m(C)=30°

m(C)=30° => T 30° ca AB=BC/2 => 15=BC/2 => BC=15*2=30

AM=med => AM=BC/2=30/2=15cm

c) m(C)=45°, m(A)=90°=> m(B)°=45°

AM=BC/2=36/2=18cm