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kykrilka [37]
3 years ago
8

PLSSS ASAPPP HELPPPP!!! A)99 B)9 C)None of these answers D)180 E)81

Mathematics
2 answers:
Finger [1]3 years ago
8 0

Answer:

A) 99°

Step-by-step explanation:

m \angle \: 4 = 81 \degree...(given) \\  \because \: m \angle \: 8 = m \angle \: 4  \\ (corresponding \:  \angle s) \\ \therefore m \angle \: 8 =  81 \degree \\  \\  \because \: m \angle \: 8  + m \angle \: 9=  180 \degree \\ (interior \:  \angle  s \: on \: the \: same \: side \\ of \: transversal) \\  \therefore \: 81 \degree+ m \angle \: 9=  180 \degree \\ \therefore \:  m \angle \: 9=  180 \degree  -81 \degree \\ \huge \red{\therefore \:  m \angle \: 9=  99\degree} \\

Serga [27]3 years ago
7 0

Answer:

D) 81°

<h3>stay safe healthy and happy.</h3>

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