PLEASE HELP!! Please show your work in explanation no nonsense or blank answers please ;)

r = 4.908

Step-by-step explanation:

V  = 885

height (given in the picture) = 11.7

V = h

V = (3.14)()(h)

885 = (3.14)()(11.7)

885/3.14/11.7 =

Take the square root and you get 4.908.

angle addition postulate

2x=56

step-by-step explanation:

answer:

total cost for tiles and paints is $924.  

step-by-step explanation:

we have been given that a community hall is in the shape of a cuboid. the hall is 40m long 15m high and 3m wide.

the paint will be required for 4 walls and ceiling.

let us find area of walls and ceiling.

therefore, the area of walls and ceiling is 1410 square meters.

given: cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. therefore,

therefore, the total painting cost is $564.

tiles will be required for floor. let us find the area of floor.

given: 1m squared floor tiles costs $3. so,

therefore, the total tiles cost is $360.

now let us find combined total cost of tiles and paint.

therefore, the combined total cost of tiles and paint is $924.