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18-06-2020
Mathematics

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AB←→ is perpendicular to CD←→. How many 90° angles are formed by the intersection?

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18-06-2020

Answer: 4

Step-by-step explanation:

Since AB and CD are perpendicular lines, you know that they make 90° angles. Perpendicular lines make a t or + shape. Since it is 2 lines, you know there will be 4, 90° angles, to make up a full 360°.

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