Question

Construct ∆XYZ in which angle Y=30°, angle Z=60° and XY+YZ+ZX=10cm​

Answer 1

Answer:

y=30

z=60

x=?

x+y+z=180

30+60+x=180

x+90=180

x=180-90

x=90

xy+yz+zx=180

90×30+30×60+60×90=10cm

270+180+540=10cm

450+540=10cm

990=10cm

990/10

99cm