Answer:
Step-by-step explanation:
An isosceles triangle has 2 sides that are the same length. Let's say that our triangle has the 2 sides measuring the same and the base is a different length. The vertex angle is the top angle. By the definition of an isosceles triangle, since the 2 sides measure the same length, then the angles across from those sides have the same degree measure. If we know the measure of the vertex angle, then we have
180 = vertex angle - base angle - base angle
but since the base angles are the same and we have 2 of them, then
180 = vertex angle - 2 base angles
For example, if the vertex angle measures 80 degrees, then 180 - 80 = 100. That 100 has to be split in half for each of the base angles which are the same as each other. So the vertex angle is 80 and each base is 50.
Answer:
24.5-9-6
Step-by-step explanation:
For this case we must find the value of the variable of the following equation:

Subtracting
from both sides:

Subtracting 4 from both sides:

Multiplying by 6 on both sides:

Answer:

Answer: OPTION B.
Step-by-step explanation:
By definition, the slope equals the Rise divided by the Run; then, the slope can be found using the following formula:

Where "Rise" is the vertical change between two points and "Run" is the horizontal change between those two points.
In this case you can identify in the figure that:

Knowing these values, you can substitute them into the formula.
Through this procedure you get that the slope of the ramp is:

The one you have selected is correct