Find a. Round to the nearest tenth:

Step-by-step explanation:

In the following triangle, a= ? , b= 2cm.

m<B= 105° , m<C = 15° ,m< A =?

Now, we know that sum of the interior angles of the triangle = 180°

m<B+m<C +m< A =180°

105°+15°+m< A=180°

m< A= 180- 120° = 60°

13

step-by-step explanation:

distance formula is d=√(x2-x1)^2   +   (y2-y1)^2

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