In triangle XYZ, XY · cosY = XZ · cosZ. Which of the following must be true about 4XYZ? (a) It is a right triangle. (b) It is an obtuse triangle. (c) It is an acute triangle. (d) It is an isosceles triangle.

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asked Jul 22, 2021 191k views

4 votes

In triangle XYZ,

XY · cosY = XZ · cosZ.
Which of the following must be true about 4XYZ?
(a) It is a right triangle.
(b) It is an obtuse triangle.
(c) It is an acute triangle.
(d) It is an isosceles triangle.
(e) It is an equilateral triangle.

Mathematics
middle-school

Tim Malich asked

by Tim Malich

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5 votes

it is b, d, and e your welcome let me know if they are wrong but they were correct when i did it

David Turner answered Jul 28, 2021

by David Turner

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