Question 9(Multiple Choice Worth 1 points) (04.01 MC)
How can you prove a triangle is isosceles?

⇒You will be able to tell because a triangle which has two sides of equal length is isosceles.

The Isosceles Triangle Thearem states: If two sides of a triangle are congruent, then angle opposite those sides are congruent.

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in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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