Question

Q.13. In triangle ABC , A = 45 deg
B= 70 deg then C
= ? ​

Answer 1

Answer:

sum of angles in a triangle is 180 degree

angle A + angle B + angle C=180

45+70+angle C =180

angle C= 180-45-70=65

Explanation:

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Answer 2

Explanation:

In Δ ABC

<BAC = 45° and <ABC = 70° , <ACB = ?

A/q

<BAC + <ABC + <ACB =180° ( Angle sum property of a Δ )

or, 45° + 70° + <ACB = 180°

or, 115° + <ABC = 180°

or, <ABC = 180° – 115°

Hence, <ABC = 65°