Answer:
Step-by-step explanation:
Trigonometric table has the value of the trigonometric ratio of Sin, Cos , Tan , Csc, Sec & Cot of the angles 0° , 30°, 45° , 60°, 90°
Cos 45 = 
Tan 30 = 

Easiest way to get the surface area of the lateral square pyramid is by using the formula:

a = Base edge = 646 ft
h = Height = 350 ft
Using the formula:

[tex]A_{L} = 6.15335×10^{5} square feet
[tex]A_{L} = 615335<span> square feet</span>
When we have a coat with a 20% discount we only pay the remaining 80%.
This 80% equals £220
The original price was 100%
First we find out the value of 1%:
220 / 80 = £2.75
Finally we want to know the total 100% so find multiply our 1% by 100
£2.75 * 100 = £275
So the original price was £275
Https://www.khanacademy.org/math/algebra/rational-exponents-and-radicals/alg1-rational-exp-eval/v/ne...
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