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2 years ago

Pls help me I don’t know

Mathematics

2 answers:

pochemuha2 years ago

8 0

All angles of a triangle sums up to 180 degrees

a° = 3a + 90 = 180°

3a = 180 - 90

3a = 90

a = 90÷3

a = 30°

b = 180-(25+90)

b = 180 - 115

b = 65°

<em><u>PLEASE MARK THIS ANSWER THE BRAINLIEST</u></em>

Ede4ka [16]2 years ago

6 0

Answer:

b= 65 a=25 and 2a=32.5

Step-by-step explanation:

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