Answer:
Step-by-step explanation:
Sum of all the angles of 12 sided polygon= (n -2)*180
= (12 - 2 )*180 = 10 * 180 = 1800
Four interior angle each of xº + 8 interior angles each of 2xº = 1800
4*x + 8*2x = 1800
4x + 16x = 1800
20x = 1800
x = 1800/20
x = 90°
10 percent of 40 dollars is basically 10 parts out of 100 parts of 40 dollars, which is 4 dollars (0.1(40) = 4). Steve paid 4 dollars in taxes and 44 dollars in total.
<span>8a^2 - 7ab = a(8a - 7b)
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Answer:
37.8 yd^3
Step-by-step explanation:
base area = (4.5 x 2.8)/2 = 6.3 yd^2
Volume = 6.3 x 6 = 37.8 yd^3
