Question

what is the missing angle ​

Answer 1

Answer:

answers is 30

hope help you

Answer 2

Step-by-step explanation:

Given -

• Figure

To Find -

• The missing angle

As we know that :-

• The sum of interior angles of triangle is equal to 180°

It means,

∠A + ∠B + ∠C = 180°

Now,

In ΔABC,

∠A + ∠B + ∠C = 180°

» 125° + ∠B + 35° = 180°

» ∠B = 180° - 160°

• » ∠B = 20°

Hence,

The missing angle is 20°.

Additional information :-

• Area of right-angled triangle = ½×base×height
• Heron's formula = √s(s-a)(s-b)(s-c)

here,

• s = a+b+c/2
• a, b, c are sides of triangle