Math, asked by vindhyavenkatesh, 2 months ago

8.
In the given figure :
b = 2а + 15° and
с
с = За +5°,
70°
find the values of b and c.

Answers

Answered by komalbaisa99

1

Step-by-step explanation:

b = 2a + 15

& ∠c = 3a + 5

∵ Sum of angles of quadrilateral = 360°

70° + a + 2a + 15 + 3a + 5 – 360°

6a + 90° = 360°

6a = 270°

a = 45°

∴ b = 2a + 15= 2 × 45 + 15 = 105°

c = 3a + 5 = 3 × 45 + 5 = 140°

105° and 140°

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