Question

angleB=90degree and cosA=cosC, then prove that angleA=angleC.​

Answer 1

Answer:

mai tumhe advice karungi toh suno randi kutta harami

Answer 2

Answer:

Cos A = Cos C

Step-by-step explanation:

As, ∠B = 90°.

Then, A and B are acute angles.

Cos A = AB/AC

Cos C = BC/AC

As, Cos A=Cos C

So, AB/AC = BC/AC

Therefore, AB = BC.

So,

∠C = ∠A                                                                                                         (angle opp. to equal sides are equal)

Hope it helps.

Thank you.