What is m∠4 + m∠5 + m∠6?

180
270
300
360

the 2 figures are congruent bc if you reflect abcd over the y axis then over the d axis the figures overlap

a reflection across the x-axis , followed by the by a reflection across the y-axis , and then a scale dilation of 0.5 .

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: 819.89 miles across america

step-by-step explanation: