The measure of an interior angle of a regular nonagon (9-sided polygon) is 140°
<h3>How to determine the angle</h3>
The formula for sum of interior angles of a polygon is given as;
= ( n -2) × 180
Recall that a nonagon has nine sides, so , n = 9
Substitute the value into the formula
= ( 9 -2) × 180
= 7× 180
= 1260°
Since the sum of the angles = 1260°
One of the angles = 1260/ 9 = 140°
Therefore, the measure of an interior angle of a regular nonagon (9-sided polygon) is 140°
Learn more about polygons here:
brainly.com/question/224658
#SPJ1
Answer:
X:-5, 2
Step-by-step explanation:
If you factor the expression, it becomes (x+5)(x-2). In order to make each expression in the paranthesis equal to 0, x must be -5 or 2.
4 x 213 = 4 x (200 + 10 + 3) = 852
Answer:84
7 X 12 = 84
Step-by-step explanation:
The answer is C. 75.
Explanation: Let’s go from smallest to largest.
A, 25, would not work because you can’t multiply 15 by a whole number to get 25.
B, 50, doesn’t work because again, you can’t multiply 15 with a whole number to get 50.
C, 75, is the CORRECT ANSWER because 5x15 is 75, 25x3 is 75, and 15x5 is 75. Each number can be multiplied by a whole number to get 75.