Math, asked by ritikak70076, 3 days ago

where will the hour hand of a clock stop if it start from 4 and turn throug right angle​

Answers

Answered by yuvrajsinghtomar793
0

Answer:

Annettu:

△ ABC on suorassa kulmassa kohdassa C, ∠B = 60∘

∠C = 90∘

Tiedämme sen,

Kolmiossa ABC ∠A+∠B+∠C = 180∘

60∘+∠A+90∘ = 180∘

∠A = 30∘

Meillä on,

sinA = ABCB

sin30∘ = 15CB

21 × 15 = CB

CB = 7,5 yksikköä

Pythagilta

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