Triangle ABC is an equilateral triangle with side lengths labeled a, b, and c.
2 answers:
You might be interested in
Answer:
x = 2
Step-by-step explanation:
We can use the sine or cosine ratio to solve for x
Using the cosine ratio in the right triangle and the exact value
cos45° = , then
cos45° = =
=
( cross- multiply )
2x = ×
=
= 4 ( divide both sides by 2 )
x = 2
Answer:
C(-4,-2), D(3,-7)
Step-by-step explanation:
we procced to identify points:
A(-4,-7), B(3,-2)
for being the sides of a rectangle parallel to the axes, we find the other two vertices (VIEW GRAPH)
C(-4,-2), D(3,-7); Area of the rectangle Ar=b*h, where
So Ar=(3-(-4))*(-2-(-7)) = (3+4)*(-2+7)=7*5=
