The formula or the area of a trapezoid is (a+b) divided by 2 times height so the answer is 128ft2
Answer: see proof below
<u>Step-by-step explanation:</u>
Use the following Half-Angle Identities: tan (A/2) = (sinA)/(1 + cosA)
cot (A/2) = (sinA)/(1 - cosA)
Use the Pythagorean Identity: cos²A + sin²B = 1
Use Unit Circle to evaluate: cos 45° = sin 45° = 
<u>Proof LHS → RHS</u>
Given: 
Rewrite Fraction: 
Half-Angle Identity: 
Substitute: 
Simplify: 




= 2
LHS = RHS: 2 = 2 
Step-by-step explanation:
53-5 is 48
48/6 is 8
X=8
therefore it's 8
Answer:
i dont know what your asking
Step-by-step explanation: