Your questions More on similarity More on circles More on triangles Review for exam.

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Presentation transcript:

Your questions More on similarity More on circles More on triangles Review for exam

Can we go over units? (square vs. linear) This refers to the units, not the numbers themselves being squared How to study for the test next time: 1) do a “brain dump” and 2) practice the way you will be tested

Please go over REVIEW SET 1 (9:00) and Please show how to graph a slope (when starting from the y- intercept) “I struggle with formulas” (knowing what to put in? make a diagram, label it up, put into formula)

“I’d like to see circles again” (Complete FIRST PROBLEM SET)

Triangles are similar if they… Have the same angle sizes in the same order (AA) Have corresponding sides whose ratios are equal (SSS) Have two corresponding sides with the same angle between them (SAS) Complete SECOND PROBLEM SET

Similar polygons… Have the same angle sizes in the same order Have corresponding sides whose ratios are equal Complete THIRD PROBLEM SET

Are made up of points that are the same distance from a center point Have a radius (center to outside) Have a diameter (all the way across) Have a circumference (around outside) Circles are named for their center point

Have chords lines from edge to edge Have tangent lines touch edge only once Have arcs portions of circumference Have sectors slices of pizza

How would you find the length of an arc?

Find the arc spanned by the P acific Crest Trail Clues: 17 o of latitude Earth’s diameter: 12,742 km

How would you find the area of a sector?

Name a circle Find arc length Find sector area Identify tangents, arcs, sectors, and chords Complete FOURTH PROBLEM SET

Is useful only for right triangles Is useful for finding missing side lengths Is useful for finding missing angles Can be summed up: “SOHCAHTOA”

Find missing side lengths using sine, cosine, tangent Find missing angles using sine, cosine, or tangent Complete FIFTH PROBLEM SET

Work together on the TASK LIST in preparation for the test Do your daily check-in (this one is for your use – write it on scratch and keep it)

What are two ways and times that you will prepare for the test? How many images have you captured for your project?