Considering the angle a by cosine rule
11^2 =7 ^2 +15^2 - 2(7)(15)cos(a)
When you do the maths,
Cos(a) =153/210 =0.729
a= cos inverse of 0.729
a=43 degrees
Considering angle b
7^2=15^2 +11^2 -2(11)(15) cos(b)
This will result in cos(b) =297/330=0.9
b= cos inverse of 0.9 = 25.8 degrees
Considering angle c
15^2=7^2 +11^2 - 2(11)(7) cos(c)
Cos(c) will be = -55/154 = -0.357
c= cos inverse of -0.357=110.9
Comparing the angles a,b and c,
C is the largest size in the triangle with an angle of 110.9 degrees
Am I right please ??
Answer:
21/50
Step-by-step explanation:
42/100
42/2 = 21
100/2 = 50
2 is the greatest common denominator of 42 and 100
The answer is D becuase 18 plus 6 is twenty four
Answer:
(-0.5,1)
Step-by-step explanation:
The half of the diference between the points its equal to its midpoint distance:
Answer:
C
Step-by-step explanation:
because 15*2x=30x and 15*y= 15y and since they are adding in the parentises you add again 30x*15y
