Question

Can I have complete explanation.. please​

Answer 1

Step-by-step explanation:

(b)

We know that the sum of the angles of a triangle is 180°.

The given angles of the triangle are

x + 40°, 2x - 5°, 3x - 17°

∴ we can say that,

x + 40 + 2x - 5 + 3x - 17 = 180

⇒ x + 2x + 3x + 40 - 5 - 17 = 180

⇒ 6x + 18 = 180

⇒ 6x = 180 - 18 = 162

⇒ x = 162/6 = 27

∴ x = 27°

To check, you can substitute the value of x and add up the angles. If the sum is 180°, the value of x is correct.

Answer 2

Answer:

This is the complete explanation

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