How many different triangles can be drawn with angle measures 90°, 45°, and 45°?

no triangles

exactly one triangle

exactly two triangles

any number of triangles

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?

He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?