Question

What is the measure of the missing angle?
31°
900

Answer 1

Answer:

59

Step-by-step explanation:

$180=31+90+x\\\\180=121+x\\x=180-121\\x=59$

using sum of angles in a triangle

Answer 2

Step-by-step explanation:

Let the missing angle be ' x ' .

Now, Set up an equation and solve for x

$\tt{x \degree + 90 \degree \: + 31 \degree = 180 \degree}$ { Sum of angles of a triangle }

⇢ $\tt{x \degree + 121 \degree = 180 \degree}$

⇢ $\tt{ \: x \degree = 180 \degree - 121 \degree}$

⇢ $\tt{x \degree = 59 \degree}$

$\red{ \boxed{ \boxed{ \text{Our \: final \: answer : \boxed{ \underline{59 \degree}}}}}}$

Hope I helped ! ツ

Have a wonderful day / night ! ♡

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁