Question

pls make this sum soon​

Answer 1

Answer:

$\mathfrak \red{given}$

ABC=90°

ACB=30°

AC=20Cm

we know that A+B+C=180°

A+90°+30°=180°

=>A=180°-120°

=>A=60°

from A

cos60°=AB/20

=1/2=AB/20

AB=1/2×20

AB=10

FROM angle

cos30°=BC/AC

Root3/2=BC/20

10underroot3=Bc

• AB=10cm
• BC=10 underroot 3

Answer 2

Given:

ABC = 90°

ACB= 30°

AC = 20°

We know that A + B + C = 180°

A + 90° + 30° = 180°

A = 180° - 120°

A = 60°

from A

cos 60° = AB/20

1/2 = AB/20

AB = 10

From angle

cos 30° = BC/AC

√3/2 = BC

• AB = 10 cm

• BC = 10√3cm

silentlover45.❤️