Why is the formula for finding the area of a parallelogram for the same as for the rectangle?

Step-by-step explanation:

The reasons why the area of parallelogram and rectangle are the is that the two opposite sides are equal, they have the lines of symmetry, the sum of their angles is equal to 360°

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it

b. 2 and 4

step-by-step explanation: