Answer all u do is multiply 7 by 7 then add 3
Step-by-step explanation:
Answer:
<h2>The polygon has 12 sides</h2>
Step-by-step explanation:
The sum of interior angles of a polygon is given by
<h3>( n - 2) × 180</h3>
where
n is the number of sides
From the question the sum is 1800°
Substitute the value into the above formula and solve for the number of sides
That's
( n - 2) × 180 = 1800
180n - 360 = 1800
180n = 1800 + 360
180n = 2160
Divide both sides by 180
n = 12
Therefore the polygon has 12 sides
Hope this helps you
Answer:
The answer is -54. Please mark as brainliest :)
Step-by-step explanation:
Y is directly proportional to x. So....
<h3>Finding the value of constant k.</h3>
y=kx
6=-2k
-3=k.
<h3>Finding y when x is 18</h3>
y=-3*18
y=-54.
V = a²h/3
Plugging values in we get 8.67X10^7, or 86,700,000
Honestly I think that it’s c but check that and get back to me