Answer:
Step-by-step explanation:
(-7 - 1)/(-3 - 9)= -8/-12= 2/3
Answer:
2340 degrees.
Step-by-step explanation:
The sum of the interior angle measures of any polygon can be calculated using the following expression (
is the number of sides the polygon has):

For a 15-sided polygon, plug in 15 for n and simplify:

Multiply to solve:

For a 15-sided polygon, the sum of the interior angles must be 2340 degrees. You can go a step further and divide 2340 by 15 to figure out the individual measure of each interior angle (156 degrees).
All you need to do is go on the internet and it tells you what the answer is
Answer:
Below in bold.
Step-by-step explanation:
b.
If we drop a perpendicular line from B to AC and mark the point D on AC, we have 2 right triangles, with AD = DC = 16 cm.
So tan O = BD/16 = 15/8
BD = (16*15)/8
= 2*15
= 30.
So the area of triangle ABC = 16*30
= 480 cm^2.