Angle MNO is formed by segments MN and NO on the coordinate grid: A coordinate plane is shown. Angle MNO has vertices at negative 4 comma 4 and negative 2 comma 2 and negative 4 comma 1 and measures 71.57 degrees.
Angle MNO is rotated 180 degrees counterclockwise about the origin to form angle M′N′O′. Which statement shows the measure of angle M′N′O′? (4 points)

a
m∠M′N′O′ = 90 degrees

b
m∠M′N′O′ = 180 degrees

c
m∠M′N′O′ = 2 × m∠MNO

d
m∠M′N′O′ = m∠MNO

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cosine

step-by-step explanation:

6 spoons of sugar for every 21 cups of flour

step-by-step explanation:

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

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