ok, here the formula measure of each interior angle of regular n-gon
octagon ~ 8-gon, so
180° - 360°/8 = 135° (A)
for the sum, we just need multiply the formula above with n
nonagon ~ 9-gon
sum = 9(180° - 360°/9)
= 9(140°) = 1260 (C)
Answer:
40 vehicle's
Step-by-step explanation:
set up an equation of 60/100=24/x, x is the unknow amount.
then "multiply like a butterfly" to get 2400=60x then divide both sides by x to get 40
you can also mutiply 40 by 60% to check your answer
Answer:
252 calories burned in 1 hour.
Step-by-step explanation:
She burns 756 calories in 3 hours.
She burns x calories in 1 hour
756/3 = x/1
756/3 = x
252 = x
So she burns 252 in 1 hour.
21.
a. Ratio of blue: green
Length blue: length green
3:6 or 1:2
Width blue :width green
2:4 or 1:2
Perimeter blue: perimeter green
2+2+3+3=10: 4+4+6+6= 20 or 1 :2
Area blue: Area green
2•3=6 : 4•6= 24 or 1:4
b. The lenght, with and perimeter of the big green rectangle are double the size of the small blue rectangle.
The area of the big green rectangle is 4 times greater than the area of the small blue rectangle. So if the lenghts of a rectangle are doubled the perimeter is doubled and the area is 4 times biger than the area of the doubeled rectangle.
yes because a theorem is an idea which occurs to be true in all cases. it is not a theory. definitions help with the understanding of theorems
hope this helps.
