Question

Find the unknown angle in the following figure​

Answer 1

Answer:

Ans is 18

Step-by-step explanation:

we know that sum of all angles of triangle =180

so , 6x+3x+x=180

10x = 180

x = 180 ÷10

x = 18

now a = 6 × 18 = 108

b=3×18= 54

c= 108+54=162

180-162=18

hope it will help

Answer 2

Answer:

∠R = 6x

∠S = 3x

∠T = x

6x + 3x + x = 180° (Angle sum property of triangle)

10x = 180°

x = 180° ÷ 10

x = 18°

∠R = 6x°

= (6 × 18)°

= 108°

∠S = 3x°

= (3 × 18)°

= 54°

∠T = x°

= 18°