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According to the question, BC×AB = 1/2AC2 -----(1) BC2 + AB2 = AC2 -----(2) by Pythagoras Putting the value of AC2 in equation (2), BC2 + AB2 = 2BC × AB Or BC2 + AB2 - 2BC × AB = 0 Or (BC – AB)2 = 0 Or BC – AB = 0 Or BC = AB Hence ∠BAC = ∠BCA = 45 (As sum of two angles other right angle in a right angle triangle is 900).
Select the option that is related to the third number in the same way as the second number is related to the first number.
20 : 421 : : 18 : ?
Select the option that represents the letters that, when placed from left to right in the following blanks, will complete the letter-series.
Which of the following terms will replace the question mark (?) in the given series?
HKOE , KNOE , ? , QTOE , TWOE
If a mirror is placed on the shaded line, which of the following options is the correct image of the given figure?
In a certain code language, if GIFTED is written in TRUGVW, how will LUCID be written in the same code language?
‘F + R’ means ‘F is the mother of R’
‘F – R’ means ‘F is the father of R’
Select the correct option that indicates the arrangement of the given course of actions in a logical and meaningful order.
