Question

Guys pls help its urgent ​

Answer 1

Answer:

2.

x= 60+70 = 180

there for

x= 60+70=180

130=180

x= 180-130

x=50°

Answer 2

Answer:

a) 60°

b) 140°

c) 140°

d) 108°

x+y+z = 360°

x+y+z+w = 360°

Step-by-step explanation:

a) In quadrilateral,

We know that sum of interior angles is 360°.

As per the question,

x+50+130+120 = 360

=> x + 300 = 360

=> x = 360-300 = 60°

b) In quadrilateral,

We know that sum of interior angles is 360° and sum of linear pair of angle is 180°.

As per the question,

x+70+60+90 = 360

=> x+220 = 360

=> x = 360 - 220

=> x = 140°

c) In Pentagon,

We know that sum of interior angles is (5-2)*180 = 540° and sum of linear pair of angle is 180°.

As per the question,

30+x+x+110+120 = 540

=> 2x+260 = 540

=> 2x = 540-260 = 280

=> x = 140°

d) In Pentagon,

We know that sum of interior angles is (5-2)*180 = 540° and if all sides are equal, then angles will also be equal.

As per the question,

x+x+x+x+x = 540

=> 5x = 540=> x = 108°

Next questions,

As we know that sum of all exterior angles will always be 360°. So,

a) x+y+z = 360°And,

b) x+y+z+w = 360°.

hope this helps.