You and your mom enter a drawing with 3 different prizes. The prizes are
awarded at random.
If a total of 9 people entered the drawing, in how many ways can you win first
prize and your mom win second prize?

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

4038

step-by-step explanation:

pleaze mark brainliest!

60

step-by-step explanation:

every triangle measures a total of 120 degrees. you have to find angle c. we know that isosceles triangles angles are equal. 60 degrees plus 60 degrees gives you 120.

plz mark brainliest i took the test