The diagonals of a rhombus are 8 and 10 . the area of the rhombus is 20 40 80
2 answers:
Answer:
40
Step-by-step explanation:
In a rhombus the two diagonals intersect perpendicularly. So you can see a rhombus as the union of two triangles whose base is one of the diagonals of the rhombus and whose height is the half of the other diagonal.
Therfor you can calculate the area of the rhombus calculating the area of the two triangles that are the same.
In this case the area of each triangle must be (if you take the 10-lenght-side as the basis of the triangles).
Hence the area of the rhombus is 40 because is the double of the area of each triangle.
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Answer: y+3 = 4( x + 1)
Step-by-step explanation:
The equation in point slope form is given as :
y - = m ( x -
) , where m is the slope
slope = 4
point given : (-1,-3)
Using the formula :
y - = m ( x -
)
and substituting the value , we have
y - (-3) = 4 (x -{-1} )
y+3 = 4( x + 1)
Answer:
Step-by-step explanation:
we have
This is the equation of a vertical parabola open downward
The vertex represent a maximum
Convert the quadratic equation into vertex form
step 1
Factor -2
step 2
Complete the square
step 3
Rewrite as perfect squares
----> equation in vertex form
The vertex is the point (1,5)