D(5, 7), E(4, 3), and F(8, 2) form the vertices of a triangle. What is mZDEF?

Unpollo asked Feb 26, 2023

463,670 views

1 vote

Unpollo asked Feb 26, 2023

3.3k points

Your comment on this question:

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Email me at this address if my answer is selected or commented on:Email me if my answer is selected or commented on

Privacy: Your email address will only be used for sending these notifications.

16 votes

Answer:
$m\angle DE F=90^(\circ)$

Explanation:

The slope of
is
(7-3)/(5-4)=4 .

The slope of
is
(3-2)/(4-8)=-(1)/(4) .

Thus,
$DE \perp EF$ , meaning
$m\angle DE F=90^(\circ)$ .

Metadings answered Mar 1, 2023

3.3k points

Email me at this address if a comment is added after mine:Email me if a comment is added after mine

Privacy: Your email address will only be used for sending these notifications.

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers