Question

Q. Find the unknown angles and identify the type of triangle (acute/obtuse/right angled).

Please answer these 2 Questions step by step...


​

Answer 1

Answer:

1. A-C = 35

A= 85

C = 85 - 35 = 50

A+B+C = 180

B= 180-(85+50)

B=180-135

B=45

It is a actue angled triangle

2. C = 2b

c+b=75

2b+b= 75

3b = 75

b= 25

c= 2b=2*25=50

a = 180-(25+50)

180-75= 105

It is an obtuse angled triangle

Answer 2

ANSWER IS HERE

• C = 50° and B = 45°
• C = 50° , B = 25° and A = 105°

Step-by-step explanation:

(vi) C = 2B

B + C = 75°

B + 2B = 75°

3B = 75°

B = 75°/ 3

B = 25°

C = 2B

C = 2 × 25°

C = 50°

Sum of the angle of a triangle = 180°

A + B + C = 180°

A + 25° + 50° = 180°

A + 75° = 180°

A = 180° - 75°

A = 106°