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3 years ago

PLEASE HELP ASAP I give brainlist

Mathematics

1 answer:

beks73 [17]3 years ago

6 0

Answer:

a=35°

b=55°

c=110°

Step-by-step explanation:

∡a=35° because they are opposite angles by the vertex

∡a +∡b+90°=180° (by definition of internal angles of a triangle)

35°+∡b+90°=180°

∡b=180°-90°-35°

∡b=90°-35°

∡b=55°

∡c+70°=180 because they form a straight angle

∡c=110°

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