Since b = c, the angles B and C also equal
so you get
180 - 45 = 135
135/2 = =67.5 for each angle
now we know 2 sides and all 3 angles, use the law of sines to find a
b/sin B = a/sin A
4/(sin 67.5) = a/(sin 45)
a = 4(sin 45)/(sin 67.5)
a^2 = (4(sin 45)/(sin 67.5))^2
a^2 = 9.37
Answer is C
Si is = PRT so your answer is 1500x5x4 which is = 30000
" the sum " means add
n + 14 = 72 <== ur eqiation
Point is the least number of dimensions
Im sure :)
n/5
If this is incorrect, then i am sorry.
