The length of each side would be 3 square meters
A.
because the total distance of every triangle 180. Add the two other angles so 42+ 57 =99. Then you have to subtract those two combined angles to find the missing one from the total distance, which is 180. 180-99=81. the answer is A. 81
The area of a sector is = r(theta) with r radius and central angle theta being in radians, not degrees.
First, let's convert 1 km 125 m into metres.
1 km = 1000 m
1.125 km - 1,125 m
On Tuesday, Eric biked 375 metres fewer than on Monday.
1125 - 375 = 750 m
Eric biked 750 m on Tuesday.
On both days he biked 1125 + 750 = 1,875 m or
1 kilometre and 875 metres
Use the Pythagprean theorem:
We have:
Substitute: