Question

two angles measure (30-a)degree and (125+2a)degree. if each one is the supplement of the other ,then the value of a is:

Answer 1

hello here is your answer
(30-a)+(125+2a)=180°
or, 30-a+125+2a=180°
or, a=180°-155°
or, a=25° 【Answer】

Answer 2

Answer:

The value of "a" = 25

Step-by-step explanation:

Given two supplementary angles (30-a)° and (125+2a)°

/* We know that,

Sum of ant two angles are equal to 180° is called supplementary angles. */

Now ,

(30-a)°+(125+2a)°=180°

=> -a+2a+30+125=180°

=> a + 155=180

=> a = 180-155

=> a = 25

Therefore,

The value of "a" = 25

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