Which side lengths represent the sides of a right triangle?

a. 2,3,5
b. 7,24,25
c. 7,23,25
d. 12,16,21

For this case we have that every rectangle triangle complies with the Pythagorean theorem, that is, in every right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the respective lengths of the legs. So:

Option A:

It is not fulfilled

Option B:

Is fulfilled.

Option C:

It is not fulfilled

Option D:

Thus, it is observed that option b fulfills the Pythagorean theorem

Option B

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.