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Please I need this answer I don’t understand

Please I need this answer I don’t understand-example-1
User Aadi
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1 Answer

1 vote

Answer:

Explanation:

by inspection

angles 2 and 3 are equal, so they will be half angle ABC

angles 1 and 5 are equal so they will be

angle 1 + angle 5 + angleABC = 180° kind of a rule for triangle

the sum of all angles - 180°

(angle 1) x 2 = 180° - 70°

angle 1 = 90° - 35°

angle 1 = 55° which equals angle 5

angle 4 is clearly a right angle 90°

DO the same procedure for the bottom triangle

angle 8 and 9 are half of angle ADC

angle 8 and 9 are half of 46°

both are 23°

angle 6 equals angle 7

2 ×angle 6 = 180° - 46°

angle 6 = 90° - 23°

angle 6 = 67° angle 7 = 67°

Did I find them all

User IDia
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