Math, asked by bhengraalwin04, 10 months ago

in triangle ABC angle B = 90° angle A =30° and AC = 20 cm. Find AB and BC

Answers

Answered by yash6989262

here in triangle ABC
B = 90° , A = 30°
A + B + C = 180°
30 + 90 + C = 180°
C = 180 - 120
C = 60°
by 30°-60°-90°
BC= 1/2× AC ---(side opposite to 30°)
BC = 1/2×20
BC = 10 cm

AB =underoot 3/2×AC ----(side opposite to 60°)
AB = underoot 3/2×20
AB = 10 underoot 3

yash6989262: plz this ans set as brainlist answer

yash6989262: plz ,plz

bhengraalwin04: i can mark your answer as brainlest only if i have two answers

bhengraalwin04: understood?

yash6989262: ok

bhengraalwin04: hmm

yash6989262: which two answee

yash6989262: which two answer

yash6989262: which two answer plz tell me

Answered by madhuriptiwari

Answer:

hi bro,

here in triangle ABC

B = 90° , A = 30°

A + B + C = 180°

30 + 90 + C = 180°

C = 180 - 120

C = 60°

by 30°-60°-90°

BC= 1/2× AC ---(side opposite to 30°)

BC = 1/2×20

BC = 10 cm

AB =underoot 3/2×AC ----(side opposite to 60°)

AB = underoot 3/2×20

AB = 10 underoot 3

hope it helps you and mark me brainlist if you think i am correct

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