to get the area of a circle, you do pie times radius squaared, so we divide 4 to get the radius. so 2*2 is the radius squared,so now we just times 4 by 3.14= 12.56
180-70-30=80 The answer is 80 The two triangles are the same. Corresponding angles of congruent triangles are equal. A triangle's three angles add up to 180 degrees.
