Find the perimeter of the trapezoid using the pythagorean theorem​

Explain how you can use the associative property to evaluate (7x50)x4.

In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth.

What is the value of the product (3-2i)(3+2i)?