What is a requirement of complementary angles plz need help ASAP!!?
A. Complementary angles must be adjacent
B. Complementary angles must be vertical
C. The measures of complementary angles must add up to 90°
D. The measures of complementary angles must add up to 180°

Requirement is that the measure of complementary angles must add up to 90°

Step-by-step explanation:

incomplete question. how do you expect anyone to you when you do not post the question in its entirety?

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.