Answer: 143.8 units²
<u>Step-by-step explanation:</u>
Since you know the length of two sides and the measure of the included angle, you can use the following trig formula:
Given: a = 14, c = 21, B = 87°
Tamam hocam nasılsınız hocam proje konularını da bir insan değilim ki bir şey olmaz ya o yüzden bir insan bir
var ama ben bir insan bir arar
The theorem that can be used to prove that both right triangles are congruent is: A. LL
<h3>What is the Leg-leg Congruence Theorem (LL)?</h3>
The LL congruence theorem states that if two legs of one right triangle are congruent to two corresponding legs of another right triangle, then both right triangles are congruent triangles.
From the image given, both triangles have the following:
Two pairs of congruent legs - GM ≅ EO and MO ≅ OM
Therefore, the theorem that can be used to prove that both right triangles are congruent is: A. LL
Learn more about the LL congruence theorem on:
brainly.com/question/2102943