Question

@kx2bay can you help

Answer 1

what do you know about sin, cos ?
about areas of squares, triangles?

Answer 2

Nothing

Answer 3

so why are you doing these questions then if you know nothing?
How does your school expect you to answer the questions if they've taught you nothing?
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Are you here to learn or just to get the answers straight away and move on to the next questions?

Answer 4

Learn yesterday when you helped me I really understood

Answer 5

Sorry I meat yes my little brother was messing with the tablet he said nothing he thought you were talking to him

Answer 6

with the question about the Triangle
sin of an angle = opposite side / hypoteneous
look at the question and write down the sine of the given angle then we'll continue from there

Answer 7

The below is applicable ONLY for right-angled triangles:

a) sin 49 = 3/AC
AC = 3/(sin49) = 3/0.75=4 feet

b) Pythagorean theorem
AC^2 = AB^2 + BC^2
BC = sqrt (AC^2 - AB^2) = sqrt (4^2 - 3^2) = sqrt(16-9) = sqrt (7) = 2.65 feet and they want it rounded to the nearest foot so BC = 3 feet

Answer 8

Can we finish this another time because I have to go to bed now sorry maybe tomorrow or on sunday

Answer 9

Question 2 - the pyramid shape
a) area of the square base = side * side = 18*18 = 324 m^2
b) volume of rectangular pyramid = area of base * height / 3
V = 324 * 20 / 3 = 2160 m^3

ok goodnight

Answer 10

Thank you though bye

Answer 11

when you come back, try to participate in answering the questions, it should be an interactive session rather than information flowing from my side only ;)

Answer 12

That's fine but I had to leave that's why I did not answer