Geometry

Transformations

100

What is the transformation rule for translating a point one unit up?

(x,y) -> (x,y+1)

200

What transformation changes the size of an object?

Dilation.

300

https://docs.google.com/presentation/d/1fwAC1iecERnbB6CuNdpb4ZUeXxcaAmv49kgBTToLNYs/edit#slide=id.g335fe1b9216_0_0

What is the transformation to map one triangle onto the other?

180° Clockwise/Counterclockwise

400

How could you turn a square into a rectangle?

Dilate either the x value or the y value. (Not both)

500

https://docs.google.com/presentation/d/1fwAC1iecERnbB6CuNdpb4ZUeXxcaAmv49kgBTToLNYs/edit#slide=id.g335fe1b9216_0_91

What are the series of transformations that map triangle ABC (Lighter color) onto triangle A'B'C' (Darker color)?

90° Counterclockwise/270° Clockwise, Dilate by a scale factor of 1.5, translate 3 units right, translate 1 unit up.

Circles

100

What is the formula for the area of a circle?

πr²

200

https://docs.google.com/presentation/d/1fwAC1iecERnbB6CuNdpb4ZUeXxcaAmv49kgBTToLNYs/edit#slide=id.g3590f0711e3_0_34

What is the circumference of the circle?

56.5 in²

300

https://docs.google.com/presentation/d/1fwAC1iecERnbB6CuNdpb4ZUeXxcaAmv49kgBTToLNYs/edit#slide=id.p

What is the area of minor arc XY? Round to the nearest tenth.

28.4 in²

400

What is the formula to find one sector of the circumference of a circle?

(ϴ/360)2πr

500

https://docs.google.com/presentation/d/1fwAC1iecERnbB6CuNdpb4ZUeXxcaAmv49kgBTToLNYs/edit#slide=id.g3590f0711e3_0_14

Assume that the triangle is equilateral. What is the area of the shaded region? Round to the nearest tenth.

3.3 in²