**Answer:**

The other angle is 100

**Step-by-step explanation:**

A straight line is 180, and if one angle is 80, then 180-80=100, giving you your answer. ^^

From the **exterior angle theorem, **we have so

Half of the numbers on the cube are even, so there's a 1/2 chance that that number is even. 3/5 of the numbers on the cards, however, are odd. The chance that both of these occur is 3/5*1/2=3/10.

**Answer:**

B.

**Step-by-step explanation:**

The right triangle altitude theorem states that the altitude of a right angled triangles formed on the hypotenuse is equal to the geometric mean of the 2 line segments it creates.

This can be represented as:

Where,

h = the length of the altitude,

x and y are the lengths of the 2 segments formed.

Therefore, the length of the altitude =