let's recall that an equilateral triangle has all interior angles of 60°.
Check the picture below.
so as you can see, 2√3 = x = r, namely the radius of the circle.
![\bf \textit{area of a circle}\\\\ A=\pi r^2\qquad \qquad \implies A=\pi (2\sqrt{3})^2\implies A=\pi (2^2)(\sqrt{3})^2\implies A=12\pi](https://tex.z-dn.net/?f=%5Cbf%20%5Ctextit%7Barea%20of%20a%20circle%7D%5C%5C%5C%5C%20A%3D%5Cpi%20r%5E2%5Cqquad%20%5Cqquad%20%5Cimplies%20A%3D%5Cpi%20%282%5Csqrt%7B3%7D%29%5E2%5Cimplies%20A%3D%5Cpi%20%282%5E2%29%28%5Csqrt%7B3%7D%29%5E2%5Cimplies%20A%3D12%5Cpi)
Answer: 1. Acute 2. Complementary 3. Congruent 4. Obtuse 5.Right
6. Supplementary
Step-by-step explanation:
9514 1404 393
Answer:
-7x^2 +8x -10
Step-by-step explanation:
Combine like terms in the usual way.
(-3x^2 +5x -8) -(4x^2 -3x +2)
= -3^2 +5x -8 -4x^2 +3x -2
= (-3-4)x^2 +(5+3)x +(-8-2)
= -7x^2 +8x -10
Answer:
360
Step-by-step explanation: