ΔABC ≅ ΔDEF

What is the measure of

Answer choices are as follows:

51°

45°

84°

Cannot be determined.

Step-by-step explanation:

In triangle ABC it's 84°

In triangle DEF it's 45°

me

step-by-step explanation:

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.

hope it