Answer:
Step-by-step explanation:
a). By applying tangent rule in the triangle,
tanθ = 
θ = 
θ = 36.87°
Therefore, θ < 45°
b). By using cosine rule in this triangle,
cosθ = 
cosθ = 
θ = 45°
c). By using tangent rule,
tanθ = 
θ = 
θ = 75.96°
θ > 45°
Answer:
6
Step-by-step explanation:
first let's find all the possible combinations excluding 6+6 to get 12 using addition, we exclude 6+6 because we can't have the same integer for different variables. these are 0+12, 1+11, 2+10, 3+9, 4+8, and 5+7(also the other way around but i start with these). using common sense, I started higher because there is no way d = 0 and e= 12, so i went from 5+7 down. through trial and error and some luck, 5+7 was the correct combination. let's insert the numbers with their variables. d = 5 and e = 7. now we figure out, what minus 5 is 7? if you learned fact families in kindergarten, you'd know to find this out you add 5+7, which is 12. now we divide 12 by 2, because it's the same number added together to get this number, so you now get 6+6. does the equation make sense? (6+6) - 5 = 7, that checks out, and 5+7=12.
Answer:
<h2>14</h2>
Step-by-step explanation:
Look at the picture.
Answer:
.....................................
Step-by-step explanation:
Answer:
66 = s
Step-by-step explanation:
s + 24 = 90
90 = s + 24
90 - 24 = s
66 = s
