Do-Now Find the area of an equilateral triangle with side lengths of 26 ft. Reflect the point (3, –9) in the line y = x and state the coordinates of the image formed. Find the vertex and axis of symmetry of y = x + 8x – 2.

Review Circles & Triangles Intersection of two chords in a circle Central angle and it’s intercepted arc Find the measure of an arc given equal chord lengths Tangent & secant – intersect outside the circle Given two tangents intersecting outside the circle, find the measure of a base angle of the triangle formed Can three lengths be the sides of a triangle? Midsegment Theorem

Find the measure of major arc AB. Circles Part I Find x. xº 100º 120º 60º Find the measure of major arc AB. A 60º B A B C xº 100º Find x.

Review Circles & Triangles  Intersection of two chords in a circle Central angle and it’s intercepted arc Find the measure of an arc given equal chord lengths Tangent & secant – intersect outside the circle Given two tangents intersecting outside the circle, find the measure of a base angle of the triangle formed Can three lengths be the sides of a triangle? Midsegment Theorem  

Circles Part II Find x. 9 6 x Find the measure of angle ABC. A B C 300

Review Circles & Triangles  Intersection of two chords in a circle Central angle and it’s intercepted arc Find the measure of an arc given equal chord lengths Tangent & secant – intersect outside the circle Given two tangents intersecting outside the circle, find the measure of a base angle of the triangle formed Can three lengths be the sides of a triangle? Midsegment Theorem    

Triangles Can sides with lengths of 3m, 4m, and 6m represent the sides of a triangle? A B C D E DC is the midsegment of triangle AEB. If DC = 8 and AB = 5x + 6, what is the value of x?