Which of the following are acute angles - -i- and -v-ii- and -iv-i- and -iii-i- and -ii-

The correct option is D (i) and (ii)(i) and (ii) are angles that are less than nbsp; 90^∘. So, they are acute angles. (iii) is a right angle. (iv) is great ...

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Mathematics

Acute Angle

Which of the ...

Question

Which of the following are acute angles ?

(i) and (v)

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(ii) and (iv)

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(i) and (iii)

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(i) and (ii)

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Solution

The correct option is D (i) and (ii)
(i) and (ii) are angles that are less than $90^{\circ} .$ So, they are acute angles.

(iii) is a right angle.

(iv) is greater than a straight angle and less than a full circle. So, it is a reflex angle.

(v) is greater than a right angle and less than a straight angle. So, it is an obtuse angle.

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