After joining two pieces of a picture frame together a frame maker checks her work by measuring the diagonal. the sides of the frame form a right angle and the measurements are as follows: a=12in. and b=5in.

if the sides form a right angle, then the diagonal must be according to the Pythagorean Theorem:

If that is indeed the measurement, the frame maker knows she made the frame right-angled.

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

answer:

125 yards

explanation:

75+50=125. that is my answer