3 years ago

Help thanks. . .

1 answer:

Natasha2012 [34]3 years ago

3 0

Area of triangle = 1/2 ABsinC

Since all sides are equal, it means it is an equilateral triangle
⇒All angles are 60°

Area of triangle = 1/2 ABsinC
Area of triangle = 1/2 (3.5)(3.5)sin(60°)
Area of triangle = 5.3 in²

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Step-by-step explanation:

We have been given that Karina rode her bike up a mountain trail at an average of 4 mph. Then she rode it back down the trail at an average of 20 mph. The entire trip took 3 hours.

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