Write 7/10 as a sum of fraction two different ways

Hiroaki wants to find 3 3/4 - 7/8 explain why he must rename 3 3/4 to do the subtraction.

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

The area (a) of a circle with a radius of r is given by the formula and its diameter (d) is given by d=2r. arrange the equations in the correct sequence to rewrite the formula for diameter in terms of the area of the circle.