Notice that based on the diagram, all of the sides of the triangle are the same length. (The dashes on the sides of the triangle show that the sides are of congruence.) This means that the triangle is an equilateral triangle. An important thing to note about equilateral triangles is that they all have angles of 60°. All angles in equivalent triangles are 60°.
This means that we can set 
equal to 60 to solve for 
:
Our answer is x = 9.
Answer:
4.5/3 or 1.5
Step-by-step explanation:
slope formula: (y2-y1)/(x2-x1)
(6.5-2)/7-4)=4.5/3... you can further simplify to 1.5.
Since perpendicular lines have their slopes as negative reciprocals, the negative reciprocal of the given slope (3) is -1/3. Therefore the a value is -1/3.
Answer:
5(7) means 5x7 because between 5 and (7) is an invisable x or * which means multiply 5 and 7 so the answer is 35.
Step-by-step explanation:
3/5a = 1/4....multiply both sides by 5/3, cancelling out the 3/5 on the left
a = 1/4 * 5/3
a = 5/12
