Question

ΔABC , ∠A = 70⁰ , ∠B = 30⁰, ∴ ∠C = ?​

Answer 1

Answer:

80°

Step-by-step explanation:

We know that the summ of the three angles of a triangle are equal to 180°

angle A + angle B + angle C = 180°

70 + 30 - 180 = angle C

100 - 180 = angle C

80 = angle C.

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Answer 2

Answer:

∠C = 80°

Step-by-step explanation:

In a Triangle, sum of angles is =180°

so,

∠A + ∠B + ∠C = 180°

70° + 30° + ∠C = 180°

100° +∠C = 180°

∠C = 180°- 100°

∠C = 80°