Question

can somebody help me with these questions​

Answer 1

Answer:

MATE I KNOW ONLY 6TH

Step-by-step explanation:

4:5:9

4+5+9=18

SO

1ST ANGLE =  4/18*180

                          =40 DEGREE

2ND ANGLE =5/18*180

                    =50  DEGREE

3RD ANGLE =9/18*180

              =90 DEGREE

HOPE IT HAS HELPED U

PLZ MARK ME AS BRAINLIEST

Answer 2

Answer:

5. let the other 1st angle be x

then ,

60°+x+x+20°=180°

2x+80°. = 180°

2x. = 180°-80°

2x. = 100°

x. = 100°

2

x. = 50°

1st angle = x=50°

2nd angle =x+20 =70°

3rd angle. = 60°

6) let all angle be x

4x+5x+9x=180°

18x. =180°.

x. = 180°

18

x = 10°

4x=40°.

5x=50°

9x=90°

7) no , it is not possible to construct a triangle because, the sum of all side the triangle of is 180° and here the total sum is 205° .

hope this will help you dear

mark as brainiest answer

give me thanks