Illustrative Mathematics - Geometry - Unit 7 - Lesson 1

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Last updated about 1 year ago

13 Questions

Find the values of x, y, and z.

G.C.2

G.CO.1

G.SRT.5

Write an equation of the altitude from vertex A.

G.C.2

G.CO.1

G.SRT.5

10.

Triangle ABC has vertices at (5,0),(1,6) and (9,3). What is the point of intersection of the triangle’s medians?

The medians do not intersect in a single point.

(3,3)

(5,3)

(3,4.5)

G.C.2

G.CO.1

G.SRT.5

11.

Consider the parallelogram with vertices at (0,0),(8,0),(4,6) and (12,6). Where do the diagonals of this parallelogram intersect?

G.C.2

G.CO.1

G.SRT.5

12.

Lines l and p are parallel.
 Select all true statements.

cos(B)=sin(C)

The slope of line l is equal to the slope of line p.

Triangle ADB is similar to triangle CEF.

Triangle ADB is congruent to triangle CEF.

sin(A)=sin(C)

G.C.2

G.CO.1

G.SRT.5

13.

Mai wrote a proof that triangle AED is congruent to triangle CEB. Mai's proof is incomplete. How can Mai fix her proof?

We know side AE is congruent to side CE and angle A is congruent to angle C. By the Angle-Side-Angle Triangle Congruence Theorem, triangle AED is congruent to triangle CEB.

G.C.2

G.CO.1

G.SRT.5

This lesson is from Illustrative Mathematics. Geometry, Unit 7, Lesson 1. Internet. Available from https://curriculum.illustrativemathematics.org/HS/teachers/2/7/1/index.html ; accessed 29/July/2021.

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