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4 years ago

12

Help with this question !

1 answer:

Genrish500 [490]4 years ago

5 0

Statements                                           Reasons
1. Write all the given as you did            1. Given
2. <DBA and <DBC are right angles     2. Def of perpendicular lines
3. m<DBA = 90                                     3. Def of right angle
    m<DBC = 90
4. m<DBA = m<DBC                             4. Substitution
5. m<DBA = m<1 + m<3                     5. Angle addition postulate
    m<DBC = m<2 + m<4
6. m<1 + m<3 = m<2 + m<4                  6. Substitution
7. m<3 = m<4                                        7. Subtraction prop of equality

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Step-by-step explanation:

Given

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Required

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