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3 years ago

I’m so confused please help

Mathematics

1 answer:

BigorU [14]3 years ago

6 0

Answer:

BCD = 90˚

ABD = 16˚

CBE = 74˚

ADE = 74˚

AEB = 148˚

DEA = 32˚

Step-by-step explanation:

BCD: I suppose that’s a rectangle, and all rectangles have four right (90˚) angles.

ABD: alternate interior angles are congruent, so ABD is congruent to BDC (16˚).

CBE: Complementary angles add up to 90˚, so just subtract ABD (16˚) from 90˚ to equal 74˚.

ADE: Same this as CBE for same reason.

AEB: You need to find DEC first for this. To find DEC, add BDC and ACD together to get 32˚, then subtract that from 180˚ to find the answer (148˚). This is because all triangles have a 3 interior angle measure sum of 180˚. (And vertical angles are congruent).

DEA: Subtract AEB from 180˚ because they’re supplementary angles.

Hope this helps :)

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