Question

plzz ans me fast as u can ..... ​

Answer 1

Step-by-step explanation:

Here

sum of angles of quadrilateral is 360

a) 50 +130+120 +x = 360

=> x = 360- 300

=>x = 60

In b) question also apply this

c) sum of all angles of Pentagon = 540

here

2x+ 30+ (180-70)+(180-60)= 540

=> 2x+ 30+110+120= 540

=> 2x = 540- 260

=>2x= 280

=> x = 140

in d) all sides 4are equal

let angles be x

then 5x = 540

=> x = 108

hope it helps

mark it as brainlist

Answer 2

Step-by-step explanation:

a: Here;

Concept:

Sum of all interior angles of a quadrilateral is 360°.

Therefore;

50°+130°+120°+X=360°

=>300°+X=360°

=>X=360°-300°=60°.

b) This same cocept applies.

c) Concept :

Sum of all interior angles of a Pentagon is 540°.

Therefore;

30°+(180-70)+(180-60)+X+X=540°

=>30°+110°+120°+2X=540°.

=>260°+2X=540°

=>2X=540°-260°=280°

=>X=280°/2=140°

d) Same concept applies FROM c.