Answer:
72°
Step-by-step explanation:
Let the 2 equal angles be x then the third angle is x + 18
The sum of the 3 angles in a triangle = 180°, thus
x + x + x + 18 = 180, that is
3x + 18 = 180 ( subtract 18 from both sides )
3x = 162 ( divide both sides by 3 )
x = 54
Hence
the largest angle = x + 18 = 54 + 18 = 72°
Multiply the first equation by 2 to then use elimination by adding the 2 equations.
So, 14x-2y=14
+. x+2y=6
Equals 15x=20 so x=20/15=4/3
Plug in to first equation to get y
7(4/3)-y=7
28/3-y=7
28/3-y=21/3
So y=7/3
Plug both x and y into second equation to check
4/3+2(7/3)=
4/3+14/3=18/3=6 it works
So x=4/3, y=7/3
Hope this helps! Have a blessed day!
Answer:
228 grams
Step-by-step explanation:
500/2=250
7*4=28
300-250=50
250-50-+28=228
A = C (congruent angles)
Then: 4p+12 = 36
Solve for p
4p = 36 - 12
4p = 24
4p/4 = 24/4
p = 6
Answer is going to be A.
Sometimes
for example a 30 degree angle has a 60 degree angle as its complement and a 150 degree angle as its supplement.
if you choose a 90 degree angle it can only have a supplement
if you choose a 180 degree angle it can't have either
hope this helps
