Answer:
Take 66 and subtract 10 to get 56
Divide 56 by 2 to get 28 - this is the first number.
Add 10 to 28 to get 38 - this is the second number.
Prove by adding 28 + 38 to get 66
Answer:
120°
Step-by-step explanation:
sum of the measures of the interior angles of a hexagon

Answer:
20
Step-by-step explanation:


Answer:
y=18.2 x=5.6
Step-by-step explanation:
sin 73 = y/19
19 sin 73 = y
cos 73 = x/19
19 cos 73 = x
Answer:
3rd answer EF = 2√13
Step-by-step explanation:
Make a right triangle and use Pythagorean theorem a²+b² = c²
Go from point F 6 units down till point (1,-3) .From that point go 4 units left till you hit point E.
Triangle has legs a and b that are 6 and 4 units long so 6² + 4² = EF²
36 + 16 = 52
EF² = 52 find √52
EF = √52
There is no √52 as a whole number so rewrite 52 as a product of number who was a √ and the other who doesn't have a √
52 = 4 * 13
EF = √4 * √13 = 2√13