I think it's 45 because 50+85=135
*Remember in total the sum of all angles must be equal to 180
So in order to find the missing angle subtract 180-135=45.
45 is the measure of the 3rd angle.
Hope I helped :)
Answer:
There ya go
Step-by-step explanation:
Answer
Find out the Area of a triangle .
To proof
Formula
Area of Triangle

Now vertices are D(3, 3) , E(3, −1) , and F(−2, −5) .

Solving the above


= -10 units²
(Neglected the negative sign as area cannot be negative.)
= 10 units ²
Area of a triangle is 10 units ²
Hence proved
9.8 I think... I hope this helps in any way