Question

PLEASE GIVE WORKING AND ALSO ANSWER PLEASE I NEED IT VERY BADLY

Answer 1

Answer:

3. Let the four angles of the Quadrilateral be a, b, c and d

a+c=280°

b=d

a+b+c+d=360°

280°+b+d=360°

280+b+b=360

280+2b=360

2b=360-280

2b=80

b=40

b=d=40°

4. Let the unknown angle be x

75+110+60+x=360

185+60+x=360

245+x=360

x=360-245

x=115°

5. Let all the equal angels be x

x+x+x+x=360

4x=360

x=360/4

x=90°

HOPE THIS BRING A SMILE IN YOUR FACE

Step-by-step explanation:

Answer 2

Answer:

1) answer- b)

2)answer-c)

3)answer - 80 degrees

4)110+60+75+x=360

    245+x=360

       x=360-245

          x=115

5) 360/4=90 degrees in each angle