Question

Find the value of x.​

Answer 1

Answer:

in triangle ABC :

angle C= 90°

angle A= 40°

ATQ:

B= 180°-(90°+40°)

= 50°

let the triangle be EBD

where E=100°

B= 50°

so

D= 180°-(100+50)°

= 50°

x= 50° - ans

Answer 2

Step-by-step explanation:

first 40+90+b=180

130+b=180

b=50

now

b+100+x=180

50+100+x=180

150+x=180

x=180-150

x=30