the sum of all interior angles in a polygon is
180( n - 2)
n = number of sides
now, this polygon is a quadrilateral, so it has 4 sides, so it's total is just 180( 4 - 2) = 360.

Answer:

Step By Step Explanation:
Area Of Triangle: 
Base: 10
Height: 24 (This triangle has a right angle, so we use the height based off of the 90° angle, which is 24)
Insert Numbers Into Equation

10 = 5

➤ 
2.5 is your answer because first we divide the numbers then subtract 2 from both sides and simplify
69............................