In the figure below, lines l, m, and n intersect to form the angles shown. What is the measure, in degrees, of Angle 1 ?

Acircle has a circumference of 28.36 units what is the diameter of the circle

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square

Grandpa ernie is shrinking! over the past 4 years his height decreased by a total of 2.4 cm.it decreased by the same amount each year. what was the change in grandpa ernie's height each year