Experts/ace/trusted helpers/geniuses helpp mee plz

Mathematics

2 answers:

maria [59]3 years ago

8 0

inside angles need to equal 180

180-75-40 = 65

now the question mark and 65 need to equal 180

180-65 = 115

answer is 115

sertanlavr [38]3 years ago

4 0

The angles of a triangle must add to 180. We know 2 of the angles, so by subtracting them both from 180 we can find the remaining angle.

180 - 75 - 40 = 65

The 65 degree angle and the angle we are looking for are supplementary angles. This means they add to 180.

180 - 65 = 115

The answer is 115.

You might be interested in

The Willis Tower in Chicago is about 1450 feet. The Empire State building in New York City is about 4/5 as tall. About how tall

Tcecarenko [31]

Answer:

1160 feet

Step-by-step explanation:

8 0

3 years ago

Find the interior angle of a regular polygon which has 6 sides

AveGali [126]

Answer:

120°.

Step-by-step explanation:

The sum of all interior angles in a polygon with $n$ sides ( $n\in \mathbb{Z}$ , $n \ge 3$ ) is equal to $(n - 2) \cdot 180^{\circ}$ . (Credit: Mathsisfun.)