Question

Answer the question step up step with full explanation
I will mark first answer brainliest.​

Answer 1

Answer:

Step-by-step explanation:

The total equals 180 degrees

(2x+20)+(x+25)+(2x-15)=180

x=30

2x+20=80

x+25=55

2x-15=45

Answer 2

Answer:

Sum of all angles of a triangle = 180°

So...

• (2x + 15) + (x + 10) + (3x + 5) = 180
• 2x + 15 + x + 10 + 3x + 5 = 180
• 6x + 30 = 180°
• 6x = 180-30
• 6x = 150
• x = 150/6
• x = 25°

Measure of A = (x + 10°)

= 25° + 10° = 35°

Measure of B = (3x + 5)

= 3 × 25 + 5 = 80°

Measure of C = (2x + 15)

= 2 × 25 + 15 = 65°