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Core Connections Integrated I, 2013

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Core Connections Integrated I, 2013 View details

2. Section 8.2

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Exercise 120 Page 483

The Triangle Midsegment Theorem tells us that if a segment joins the midpoints of two sides of a triangle, then the segment is half as long as the third side.

$50$

Practice makes perfect

To find the perimeter of

△ A C D,

we need to know the lengths of all sides of the triangle.

P = A C + C D + A D

Let's start by finding the lengths

A C

and

A D .

We are given that

\overline{B E}

is a midsegment of

△ A C D,

so

B

and

E

are midpoints of segments

\overline{A C}

and

\overline{A D},

respectively.

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Subchapter links

8.2.1 Curve Fitting p.471-472

8.2.2 Curved Best-Fit Models p.478-480

8.2.3 Solving a System of Exponential Functions Graphically p.483-484