Four triangles are shown below.
Based on these triangles, which statement is true?

Arectangle has a width of 5 cm and a length of 10 cm. if the width is increased by 3, how does the perimeter change?

What is the length of the midsegment of a trapezoid with bases of length 15 and 25 ?

Norder to get a certain shade of blue paint, a mixer must have 5 parts white paint to 3 parts blue. if 4 gallons of paint must be mixed, how many gallons of white paint must be used?