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sveticcg [70]
3 years ago
14

Please help w/ this question image attached

Mathematics
2 answers:
Vadim26 [7]3 years ago
7 0

Your answer would be D. 121.

The reason why this is your answer because Angle 15 is congruent to 3 (The same).

Marina86 [1]3 years ago
6 0
D. _________________________
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Answer:

C

It's between C and D.

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Step-by-step explanation:

In D, the angle AC∠ is too small and it can be automatically crossed out. As well as A and B.

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Please help me
BabaBlast [244]

Answer:

As ΔABC is an <u>isosceles triangle</u>:

⇒ BA = BC  
(the dashes on the line segments indicate they are of equal measure)

⇒ ∠BAC = ∠BCA = 55°

⇒ ∠BCA = ∠BAD = 55°

Angles on a <u>straight line</u> sum to 180°

⇒ ∠ADE + ∠EDC = 180°

⇒ 98° + ∠EDC = 180°

⇒ ∠EDC = 82°

As BE intersects AC, the <u>vertically opposite angles</u> are <em>equal</em>:

⇒ ∠BDC = ∠ADE = 98°

⇒ ∠ADB = ∠EDC = 82°

Interior angles in a triangle sum to 180°

⇒ ∠BAD + ∠ADB + ∠ABD = 180°

⇒ 55° + 82° + ∠ABD= 180°

⇒ ∠ABD = 180° - 55° - 82°

⇒ ∠ABD = 43°

5 0
2 years ago
Read 2 more answers
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