Which statements about quadrilaterals are true? Check all that apply. The sum of the measures of their interior angles is 180º.
The sum of the measures of their interior angles is 360°.
They are all polygons with four sides.
All quadrilaterals must have at least one set of congruent angles or parallel sides.
A square is a rectangle and a parallelogram, but not a trapezoid.

Step-by-step explanation:

They are all polygons with four sides.

The sum of the measures of their interior angles is 360°.

2. The sum of the measures of their interior angles is 360º.

3. They are all polygons with four sides.

5. A square is a rectangle and a parallelogram, but not a trapezoid.

Step-by-step explanation:

what is all that apply?

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!