Question

100 points if you answer!

Answer 1

Sum of angles in a traingle=180

• 2x+1+5x+5+90=180
• 7x+96=180
• 7x=84
• x=1

<C

• 5(12)+5
• 60+5
• 65°

Answer 2

<C=65°

Explanation:

Solution Given:

Since the sum of interior angle is 180°

so

(2x+1)°+(5x+5)°+90°=180°

opening bracket

2x+1+5x+5+90=180

solving like terms

7x+96=180

subtracting 96 on both side

7x=180-96

7x=84

dividing both side by 7

x=84/7=12

since <C=(5x+5)°

substituting value

<C=(5*12+5)°=65°