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Similar Figures. Batman says: “You got this.”. Comparing shapes. One way of comparing shapes is to determine if they are - Congruent or - Similar. Congruent shapes. Same angles Exact same side lengths Can be rotated, or reflected (flipped)
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Comparing shapes • One way of comparing shapes is to determine if they are- Congruent or- Similar
Congruent shapes • Same angles • Exact same side lengths • Can be rotated, or reflected (flipped) • A cut-out of one shape will always fit exactly over the other
Similar Figures • Same angles • Same shape • Can be rotated, or reflected • MAJOR DIFFERENCE: The side lengths are larger or smaller • Side lengths must be in proportion with the original
If you are given the dimensions of one shape, and are asked to find the dimensions of a similar figure • Set up equivalent fractions (cross multiplication)new side length new side length old side length old side length
Por ejemplo • Copy down the steps from the board