Question

please solve it i will mark as brainlist
I need help fast please​

Answer 1

Answer:

Hope it helps you :-):-) :-) :-) :-)

Answer 2

Answer:

3.angle c=144°

4.x=100°

Step-by-step explanation:

3. a+b+90°=180°

3x+2x+90=180°

5x+90° =180°

5x=180°- 90°

5x=90°

x=90°/5

x=18°

a=3×18=54

b=2×18=36

angle b+angle c=180°(linear pairs)

36°+ angle c=180°

angle c=180°-36°

=144°

4. 40°+40°+x=180°

80°+x. =180°

x=180°-80°

x=100°