An official olympic-sized ice hockey rink measures 30 meters by 60 meters. the ice hockey rink at the local college measures 25.5 meters by 51 meters. are the ice hockey rinks similar

Yes, the ice hockey rinks are similar

Step-by-step explanation:

The Olympic-sized ice hockey rink measures 30 meters by 60 meters. This means the measurement exist as one to ratio two. Mathematically it is represented as 1:2. This can be explained as one side measurement been double the size of the other side measurement. One side is 30 meters , the other side is 30 × 2 to get the measurement.

The Ice hockey rink at the local college has similar orientation with the Olympic ice hockey rink . one side is 25.5 meters , when you multiply that side(25.5 meters) by 2 you will get the other side which is 51 meters.

Generally, the similarity between the Olympic-sized ice hockey rinks and the local ice hockey rinks is that one side length is double the length of the other side.  

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation: