You got it wrong again it is c. you can see this because it is the only one that has two negative numbers like the expression.
I suppose the fifth picture is right.
Answer: The area (A) of a circle is a function of its radius (r) and is given by the function A = f(r) = πr2.
Step-by-step explanation: google help
Because it is an isosceles triangle, the two base angles have to be the same, so
36°+36°=72°
angles in all triangles add up to 180°, so
180°-72°=108°
unknown=108°
Step-by-step explanation:
hope you can understand
