What is the sum of angles in a triangle and circle

The sun of the 3 inside angles of a triangle = 180 degrees.

A circle = 360 degrees.

The sum of both would be 180 + 360 = 540 degrees.

3 angles in a triangle add up to 180

And 360 in a circle

the answer is (-8,-5)

step-by-step explanation:

the endpoint to midpoint is half the length. the length is (-2,-1) so when you are at the midpoint just add it to it to find your answer -6+(-2)= -8 and -4+(-1)=-5 so (-8,-5)

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2