Question

In the given figure, A B is a straight line and BOC
= 70° .Find the measure of AOC.

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Answer 1

Step-by-step explanation:

Find the complement of each of the following angles:

(i) 35°

(ii) 47°

(iii) 60°

(iv) 73°

ANSWER:

(i) The given angle measures 35°.

Let the measure of its complement be x.

x + 35°  =  90°

or x = (90 - 35 )° = 55°

Hence, the complement of the given angle will be 55°.

(ii) The given angle measures 47°.

Let the measure of its complement be x.

x + 47°  =  90°

or x = (90 - 47 )° = 43°

Hence, the complement of the given angle will be 43°.

(iii) The given angle measures 60°.

Let the measure of its complement be x°.

x + 60°  =  90°

or x = (90 - 60 )° = 30°

Hence, the complement of the given angle will be 30°.

(iv) The given angle measures 73°.

Let the measure of its complement be x.

x + 73o  =  90°

or x = (90 - 73 )° = 17°

Hence, the complement of the given angle will be 17°.

Answer 2

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