Question

What is the measure of the missing angle?
40
90

Answer 1

`\boxed{50 }`

Explanation:

What is a Triangle?

A triangle is the simplest polygon. It is a two-dimensional shape with three straight sides forming an interior, closed space. It has three interior angles.

1. Subtract the two known angles from 180°

2. Plug the two angles into the formula and use algebra:

`\boxed{a+b+c=180}`

3. Subtract

`\boxed{180-40 =140}`

`\boxed{140-90=50}`

`c=50`

Therefore, The Answer is 50

`-TheAnimeGirl-`

Answer 2

50°

Explanation:

I am assuming that the shape is a right triangle.

All interior angles of a triangle add up to 180°.

`x + 40 + 90 = 180\\\rule{150}{0.5}\\x + 130 = 180\\\\x + 130 - 130 = 180 - 130\\\\\boxed{x = 50}`

The missing angle should be 50°.

Hope this helps.