Question

Please explain step by step

Answer 1

Let's find the value of x

Since the sum of internal angles of a triangle is 180°

therefore,

`\hookrightarrow \: (2x - 2) \degree + (x + 5) \degree + 90 \degree = 180 \degree`

`\hookrightarrow \: 2x - 2 \degree + x + 5\degree = 180\degree - 90\degree`

`\hookrightarrow \: 3x + 3\degree = 90\degree`

`\hookrightarrow \: 3(x + 1) = 3(30)`

`\hookrightarrow \: x + 1\degree = 30\degree`

`\hookrightarrow \: x = 29\degree`