y2-y1 / x2-x1
7-3 / 4-1
4/3
1 & 1/3 should be correct
Solution
Solve
Step 1: Evaluate and cross multiply
Step 2: Collect like terms
The measure of the vertex angle of the isosceles Δ is 96°
Step-by-step explanation:
In the isosceles triangle
- Two sides are equal in lengths
- The angle between the two equal sides is called vertex angle
- The other two angles are called base angles
- The base angles are equal in measure
∵ The measure of one of the base angles of an isosceles Δ = 42°
- The base angles are equal in measure
∴ The measure of the other base angle = 42°
∵ The sum of the measures of the interior angles of any Δ = 180°
∴ 42 + 42 + measure of the vertex angle = 180
∴ 84 + measure of the vertex angle = 180
- Subtract 84 from both sides
∴ measure of the vertex angle = 96°
The measure of the vertex angle of the isosceles Δ is 96°
Learn more:
You can learn more about the triangles in brainly.com/question/6530759
#LearnwithBrainly
First one is the first answer with (x+2,y-8)
Second is <8 : 65
When rounded to to the nearest ten is 520. 515 rounded to the nearest hundred is 500. Hope this helps!! <3
