A rectangle is a parallelogram with interior right angles.
That description applies very satisfactorily to squares.
A square is a special kind of rectangle, so all squares are rectangles.
(All squares are rhombuses, parallelograms, and quadrilaterals too.)
Answer:
120⁰
Step-by-step explanation:
the top number shows the degrees
32 x 5/8 = 32/1 x 5/8 = 160/8 = 20 are girls
32-20 = 12 are boys
A/B : 4/9 = 12/B
cross multiply
(4)(B) = (9)(12)
4B = 108
B = 108/4
B = 27
P = 4a...where a is the length of one side
P = 4(27)
P = 108 yds <=== perimeter of square B
Angle BCD is equal to 77 degrees