What is the area of triangle ALC in the figure given below?
  • a)
    2.5
  • b)
    3
  • c)
    3.5
  • d)
    4
  • e)
    4.5
Correct answer is option 'E'. Can you explain this answer?
Related Test: Test: Problem Solving- 1

GMAT Question

By SAVI MISHRA · Sep 26, 2020 ·GMAT
2 Answers
Venky Mouni answered Jul 25, 2019
In the figure height isAL
then y we take 3 as height

Indu Bahl answered Jul 21, 2019
First of all, we need to find LC, but for that, we need to find DL. We know that AB= DC = 7.
So, LC = DC- DL
Now, DL = √(5^2- 3^2 )= 4 (using Pythagoras Theorem)
So, LC = 7-4 = 3
Therefore, Area = (1/2)(Base)(Altitude) = (0.5)(3)(3) = 4.5

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