What is used to prove that the opposite sides of a parallelogram are congruent

What is the area of a circle, if it's radius is 2cm?

Flat side of a solid figure

You can walk 1 3/4 miles in 1/2 hour. What's your average speed?

Dawn is 32 years old. How many minutes has she lived? Dawn has lived minutes.

The area of a circle is a square miles. What is the circumference? Give the exact answer in simplest form.

What property of numbers is demonstrated in the equation (10 + 7) * 9 = (10 * 9) + (7 * 9) ?

I want to know what is 2/3 3/4 equal to?

How to flip a desk 5 feet long and then flip another desk and it was 10 feet long what would be the answer

The sum of a number and two more than twice the number is less than 50 (write in number form and solve)

Which dimensions cannot create a triangle? three angles measuring 25°, 65°, and 90° three angles measuring 50°, 50°, and 50° three sides measuring 5 in., 12 in., and 13 in. three sides measuring 4 ft, 8 ft, and 14 ft