Sum of interior angles=(n-2)180
3060=(n-2)180
3060/180=n-2
17=n-2
n=17+2
n=19..
To find the slope of a line, we can use the following formula:
m-term stands for slope or gradient. The formula is useful whenever you want to find a slope of two points.
Let these be the following:
Substitute the points in formula:
Negative multiply negative always come out as positive.
Since m stands for slope, we can say that:
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If it’s for all of them, starting with number 4, you need to find the common denominator.whatever you times the bottom by, you’ll times the top by. 4 and 7 both can turn into 28 if you multiply the 4 by 7 and the 7 by 4. Now, you multiply the 5 by 4 =20 and the 3 by 7 =21. The fractions turn to 9 and 20 over 28 minus 3 and 21 over 28.
Let the longest side of ΔABC is c = 24 and the longest side of ΔXYZ is z = 60
The ratio of any pair of corresponding sides of these triangles is the same:
z/c = 60/24 = 2.5
x = 10 · 2.5 = 25
y = 20 · 2.5 = 50
The perimeter of ΔXYZ : 25 + 50 + 60 = 135 units
hc = 8
hz = 8 · 2.5 = 20
The area of ΔXYZ : 60 · 20 / 2 = 600 square units