What is the area of the trapezoid?

153

Step-by-step explanation:

Area of a trapezoid is (a+b/2)*h.

A and b are the values of the top and bottom sides.

H is the height.

A is the top height = 10.

B is the bottom height = 7 + 7 + 10 = 24

H is the height = 9.

Plug into formula ((a+b)/2)*h:

((10 + 24)/2) * 9 =

34/2 * 9

17 * 9

153

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.