True or false with similar triangles the corresponding angles are equal

Write the equations in logarithmic form 10^3=1,000

Plzz ! if you were constructing a triangular frame, and you had wood in the length of 4 inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking/show your work:

When solving a logarithm equation, how do you find the missing variable ?