If a quadrilateral is a rectangle, then it has four right angles. true or false?

False

Step-by-step explanation:

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A rectangle is quadrilateral which has four right angles. A square is both a rhombus and rectangle. Therefore, a square is always rectangle. Hence, the given statement is true. Converse: A quadrilateral is square when a quadrilateral is rectangle. This is false statement. A rectangle is quadrilateral which has four right angles.

the multiples of 15 are 15, 30,45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195,   210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375,   390, 405, 420, 435, 450, 465, 480, 495, 510, 525, 540, 555, 570, 585, 600, 615, 630, 645, 660, 675, 690, 705, 720, and 735.

the factors of 15 are 1, 3, 5, and 15.

hope that , fam!

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