Question

what is value of a in the angle ​

Answer 1

Answer:

45 degrees

Step-by-step explanation:

straight angle is 180 degrees

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Answer 2

Answer:

angle a = 45⁰ .

Step-by-step explanation:

because we can see it is linear pair (straight angle)

let the angle be x.

so, x+x+90⁰ = 180⁰

or, 2x + 90⁰ = 180⁰

or, 2x = 180⁰ - 90⁰ = 90⁰

or, x = 90⁰/2 = 45⁰

or, x = 45⁰ .

therefore , angle a = 45⁰