The formula to find the perimeter of a rectangle is:
P = 2(l + w)
plug in your known values to solve for the unknown
20 = 2(l + 3)
20 = 2l + 6
14 = 2l
14/2 = l
7 = l or l = 7
you can check this by plugging your l value into the equation
P = 2(l + w)
20 = 2(7 + 3)
20 = 2(10)
20 = 20
hope this helps :)
Answer:
13.0 is the answer
Step-by-step explanation:
Two points are given (-3,9) and (4,-2)
Distance = √[(-3-4)^2 + (9 + 2)^2]
= √(49 + 121)
=√170
= 13.0
Answer:
Answer:
B only
Step-by-step explanation:
In A and in C, only the angles of
one triangle are congruent to the
corresponding angles of the other
triangle. That proves similar triangles but
not necessarily congruent triangles.
Definition of congruent triangles:
Two triangle are congruent if all angles
of one triangle are congruent to all
corresponding angles of the other
triangle and all sides of one triangle are
congruent to all corresponding sides of
the other triangle.
That happens only with the triangles in B.
Answer: B only
A quadtriatel is said to contain perpendicular diagnols if four go 90 degree angles are formed at the intersection of these lines