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3 years ago

Find the values of the unknown angles marked with letters. 50 points!!!!!!!

Mathematics

2 answers:

Romashka [77]3 years ago

4 0

a=115°(Alternate interior angles)
b=70°(Alternate interior angles

C:-

$\\ \sf\longmapsto c+115=180$

$\\ \sf\longmapsto c=180-115$

$\\ \sf\longmapsto c=65°$

D:-

$\\ \sf\longmapsto d+70=180$

$\\ \sf\longmapsto d=180-70$

$\\ \sf\longmapsto d=110°$

IceJOKER [234]3 years ago

3 0

Answer:

a = 115°, alternate interior angles are congruent
b = 70°, same as above
c = 180° - 115° = 65°, angles forming a straight angle are supplementary
d = 180° - 70° = 110°, same as above

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