Question

Find the missing angle measure. then classify the triangle by its angles and by its sides.

Answer 1

The answer is 90.

Explanation:

All you have to do is add 50+40 to get 90. Next subtract that from 180 to get 90.

Answer 2

Part a) The measure of the missing angle is
`90\°`

Part b) The triangle of the figure is a right triangle

Part c) The triangle of the figure is a scalene triangle

Explanation:

we know that

The sum of the interior angles of a triangle is equal to
`180\°`

so

Let

x------> the missing angle

we know that

`x\°+50\°+40\°=180\°`

solve for x

`x=180\°-90\°=90\°`

The triangle of the figure is a right triangle --------> by its angles

Because the triangle has an angle measure of
`90\°`

The triangle of the figure is a scalene triangle --------> by its sides

Because the three angles and the three sides measures are different