C-09-Q117mediumsingle_mcq

In the geometric proof for $30^\circ$ and $60^\circ$ , $\triangle OPQ$ is—

aright-angled
bequilateral
cisoceles right
dscalene

ব্যাখ্যা

In the standard construction, point $Q$ is the reflection of $P$ so that all three sides are equal, making $\triangle OPQ$ equilateral; this is what fixes the $60^\circ$ vertex angle and lets the $30^\circ$ ratios be derived.

এই অধ্যায়ের আরও প্রশ্ন

C-09-Q118If , then
C-09-Q119With and , then
C-09-Q120
C-09-Q121
C-09-Q122
C-09-Q123
C-09-Q124
C-09-Q125
C-09-Q126
C-09-Q127

Trigonometric Ratio — সব প্রশ্ন দেখুন (217টি) →

In the geometric proof for $30^\circ$ and $60^\circ$ , $\triangle OPQ$ is—

aright-angled

bequilateral

cisoceles right

dscalene

In the geometric proof for 30∘30^\circ30∘ and 60∘60^\circ60∘, △OPQ\triangle OPQ△OPQ is—

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

In the geometric proof for 30∘30^\circ30∘ and 60∘60^\circ60∘, △OPQ\triangle OPQ△OPQ is—

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

In the geometric proof for $30^\circ$ and $60^\circ$ , $\triangle OPQ$ is—

In the geometric proof for $30^\circ$ and $60^\circ$ , $\triangle OPQ$ is—