Lesson 7 Practice Problems Find side lengths
triangle one
9
21
b =?
triangle two
5
3
a=?

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

11 feet 6 inches and 8 feet 6 inches

to have more of what you want like money

step-by-step explanation:

save it by not spending on unnecessary stuff and have more