Perimeter and A...

Find the area of a parallelogram with a base of $$200$$ cm and height of $$2.5$$ cm.

Find the base of parallelogram if its area is $$\displaystyle 80{ cm }^{ 2 }$$ and altitude is $$10$$ cm.

A parallelogram has an area of $$125$$ $$m^{2}$$ and a height of $$5\ m.$$ Find the base.

A circular lawn with a radius of $$5$$ meters is surrounded by a circular walkway that is $$4$$ meters wide (see figure). What is the area of the walkway?

Find the area of a parallelogram with a base of $$34$$ meters and a height of $$8$$ meters.

A parallelogram has an area of $$60$$ $$cm^{2}$$ and a base of $$12cm$$. Find the height.

Calculate the area of a parallelogram with a base of $$ 12$$ m and height of $$5$$ m.

Find the area and inner circumference of the ring.

Find the perimeter of the figure outlined by solid line in terms of $$x$$.

Sonali pounded a stake into the ground, when she attached a rope to both the stake and her dog's collar, the dog could reach $$9$$ feet from the stake in any direction. Find the approximate area of the lawn, in square feet, the dog could reach from the stake. ( $$\displaystyle \pi $$ =3.14)