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McGraw Hill Integrated II, 2012

MH

McGraw Hill Integrated II, 2012 View details

4. Rectangles

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Exercise 58 Page 511

Consider the Isosceles Triangle Theorem.

∠ACF ≅ ∠AFC

Practice makes perfect

Before we begin, let's use the given information to mark the congruent sides of the given figure.

To name two congruent angles, we will use the following theorem.

Isosceles Triangle Theorem
If two sides of a triangle are congruent, then the angles opposite to those sides are congruent.

Using this theorem, let's show the congruent angles.

We can see that ∠ACF is congruent to ∠AFC. ∠ACF ≅ ∠AFC

Subchapter links

Exercises p.508-511