Question

please answer I will make brainliest of 7,8,10and11​

Answer 1

Step-by-step explanation:

7)Since there are four sides in the figure let's consider it a quadrilateral

so, 35+80+30+b=360(angle sum property of quadrilateral)

75+80+b=360

155+b=360

b=360-155

b=205°

8)since one angle is given perpendicular .i.e 90 let consider it's opposite one to be A

so, 90+A=180(linear pair)

A =180-90

A=90°

according to angle sum property of quadrilateral

80+70+90+c=360

240+c=360

c=360-240

c=120°

10) since it is a regular hexagon it's all angles are equal so let's consider all angles be x

x+x+x+x+x+x=720

6x=720

x=720

6

x=120°

now y

x+y=180(linear pair)

120+y=180

y=180-120

y=60°