Question

Answer it with explanation​

Answer 1

Answer:

$\huge\pink{AnSwer}$

==> D) 60°

Explanation

Reason: In rt. ∆ABC,

$cos \: C \: = \frac{bc}{ab} = \frac{7}{14} = \frac{1}{2}$

⇒ cos C = cos 60°

∴ C = 60°

Answer 2

Answer:

D) 60° is the answer

Step-by-step explanation:

Given : AC = 14cm & BC = 7cm

For Angle C, Perpendicular side = AB

Adjacent Side ( Base ) = BC

As we Have Hypotenuse & Base side, the desired Trigonometric ratio would be Cos θ

So, Cos θ = Base/Hypotenuse

Cos θ = 7/14

Cos θ = 1/2 ------(eq. 1)

But Cos 60° = 1/2 ------(eq.2)

Comparing both equation, we get,

Cos θ = Cos 60°

So θ = 60°

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