Answer:
3
4
5
9
2
Step-by-step explanation:
Are you saying 9×10 that is 90
<h3>Solution:.</h3><h3>
</h3><h3>Answer:</h3>
Hope it helps.
Do comment if you have any query.
Answer:
16
Step-by-step explanation:
7x-5+4x-7+x=180
11x-12+x= 180
12x-12=180
+12 = +12
12x = 192
/ 12 / 12
= 16
Apothem is the height of a triangel formed by two consecutive vertices with the center. the are of this triangle = 1/2 s 8 = 4s
there area 12 such triangles in the regular 12 side polygon
So area = 12 * 4 s = 48 s
