Question

in the given figure if b is a + 20 find the value of a​

Answer 1

Answer:

a = 125°

Step-by-step explanation:

Given -

O = 90°

b = a + 20°

To find -

The value of a

Solution -

O, a and b are making a whole round (360°)

so,

O + a + b = 360°

[put the value of O and b]

=> 90° + a + a + 20° = 360°

=> 90°+20° + a + a = 360°

=> 110° + 2a = 360°

=> 2a = 360° - 110°

=> 2a = 250°

=> a = 250° ÷ 2

=> a = 125°

Hence the value of a = 125°

hope it helps.

Answer 2

Answer:

Hope it helps

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