Question

pls answer this math questions
pls help
also give working

Answer 1

Answer:

Step-by-step explanation:

4. fourth angle=115°

x°+110°+75°+60°=360°

x°=360°-110°-75°-60°

x=115°

5. each angle of the quadrilateral=90°

360°÷4=90°

Answer 2

Answer:

115°

Step-by-step explanation:

first angle = 75°

second angle =110°

third angle = 60°

let the fourth angle be = x°

since angle sum of a quadrilateral = 360°

so,   75° + 110° + 60° + x° = 360°

        245° + x° = 360°

         x = 360° - 245°

          x = 115°

that means fourth angle is 115°