Question

If angle A measures 45° 55' 10" and angle B measures 55° 45' 55", then find:​

Answer 1

The angle is measure A and measure B is ∠ADC=85°.

We have given that,

A measures 45° 55' 10" and angle B measures 55° 45' 55"

Correct options are A) and B)

Given that ∠B=45,∠C=55

So, ∠A=180°−45°−55°

=80°

From △ABD

What is the addition of the triangle?

The addition of the triangle is 180 degrees.

40°+45°+∠ADB=180°

⟹∠ADB=95°

From △ADC,

40°+55°+∠ADC=180°

⟹∠ADC=85°.

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