Vera spends all of her free time surfing. Today she was out on the waves for 2 hours. That is 60% less time than yesterday. How many hours did she spend surfing yesterday?

Vera spent 1.2 hours surfing yesterday.

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step-by-step explanation:

m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true