Question

please help I need it​

Answer 1

Step-by-step explanation:

40°+4x+3x=180° (angle sum property of triangle)

40°+7x=180°

7x=180°-40°

7x=140°

x=140/7

x=20°

4x=4×20

=80°

3x=3×20

=60°

Answer 2

Answer:

4x=80°,3x= 60°

Step-by-step explanation:

as we know that , the sum of the 3 angles is 180° .

40°+4x+3x=180°

7x = 180 ° - 40°

x = 140°÷7

x = 20°.

4x= 4×20°=80°

3x=3×20°=60°.