In this lesson, we will learn how to use the triangle midsegment theorem to prove the parallelism of lines in a triangle or find a missing side length.

Students will be able to

Q1:

In the figure below, 𝐴𝐵𝐶𝐷 and 𝐷𝐵𝐶𝐻 are two parallelograms having the same base 𝐶𝐵. Find the length of 𝐿𝑀.

Q2:

The perimeter of square 𝐴𝐵𝐶𝐷 is 352. Find 𝐴𝐹.

Q3:

Given that 𝐷 and 𝐸 are the midpoints of 𝐴𝐵 and 𝐴𝐶 respectively, 𝐴𝐷=32cm, 𝐴𝐸=19cm, and 𝐷𝐸=39cm, determine the perimeter of 𝐷𝐵𝐶𝐸.

Nagwa uses cookies to ensure you get the best experience on our website. Learn more about our Privacy Policy.