Question

Solve for x then measure to find A

Answer 1

Answer:

$125 \: \: degrees$

Step-by-step explanation:

As the 2 lines are parallel

<A = <B ( Alternative Angles)

$6x + 5 = 4x + 45 \\ 6x - 4x = 45 - 5 \\ 2x = 40 \\ x = 20$

$<A = 6x + 5 \\ = 6 \times 20 + 5 \\ = 120 + 5 \\ = 125$

Answer 2

<A=6x+5

=6×20+5

=120+5

=125

<B=4x+45

=4×20+45

=80+45

=125

it is alternate angle they are equal each other

<A = < B

$6x + 5 = 4x + 45 \\ 6x - 4x = 45 - 5 \\ 2x = 40 \\ x = \frac{40}{2} \\ x = 20$