The areas of similar triangles ∆abc and ∆def are equal. if the longest side of ∆def measures 25 units, what is the length of the longest side of ∆abc

1. 5 units
2. 25 units
3. 50 units
4. 75 units

2) 25 units

Step-by-step explanation:

Given: The areas of similar triangles ∆ABC and ∆DEF are equal.

By the definition of similar triangles, the corresponding angles must be equal but the side will be in proportion.

Here the areas of the triangles ABC and DEF are equal. Therefore, they must be a congruent triangles.

If the triangles are congruent, then its corresponding sides must be equal.

Therefore, the longest side  of ΔABC is same as the longest side of ΔDEF.

So, the answer is 25 units.

dont think so

step-by-step explanation:

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2