Answer:
the answer is
Step-by-step explanation:
3/11
the formula is y2-y1 / x2-x1
Answer:
Step-by-step explanation:
x is the supplement of 133
x + 133 = 180
x + 133 - 133 = 180 - 133
x = 47
DEF is a isosceles right triangle, so DE =EF. apply Pythagoras:
DF² = DE² + EF² , BUT DE = DF .then DB² = 2DE² = 28²
DE² = 28/2 = 14 and DE = √14 = 3.71 ≈3.7