2 years ago

In the diagram AB is parallel to CD. Calculate the value of A ?

Mathematics

1 answer:

olga55 [171]2 years ago

4 0

The image of the diagram is missing, so i have attached it.

Answer:

a = 30°

Step-by-step explanation:

From the diagram attached, we can see that the 2 angles a and 5a are interior supplementary angles.

The sum of interior supplementary angles is 180°

Thus;

5a + a = 180

6a = 180

a = 180/6

a = 30°

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