Question

abcd is a parallelogram with angel a=(4x+15°)and angel c=(5x+4)°. find angle a

Answer 1

ab||cd

so a + c =180

4x+15 +5x+4=180

9x = 161

find x and put x value in angle a to find angle a

Answer 2

Answer:

Step-by-step explanation:

ABCD is a parallelogram

angleA= angleC

[Opposite Angles of parallelogram are equal]

4x+15=5x+4

5x-4x=15-4

x=11

angleA=4x+15

=4×11+15

=44+15=59°