which angle measures represent an acute triangle?
select all correct responses.
20°, 80°, and 80°
60°, 60°, and 60°
40°, 40°, and 100°
35°, 55°, and 90°
15°, 70°, and 95°
25°, 75°, and 80°
45°, 45°, and 90°

answer: 2 and 1

step-by-step explanation: got this question

70,000 + 6,000 + 800 + 30

step-by-step explanation:

4.

step-by-step explanation:

it have the same area.brainliest

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.