Mathematics
Grade9
Easy

Question

In the given figure:

Find h.

  1. 5
  2. 6
  3. 7
  4. 8

hintHint:

We can use the pythagoras theorem to find the answer.

The correct answer is: 5


    STEP BY STEP SOLUTION
    Given triangle is isosceles,
    From ∆ADC
    we will use pythagoras theorem
    A C squared space equals space A D to the power of 2 space end exponent plus D C squared
    13 to the power of 2 space end exponent equals space A D squared space plus space 12 squared
A D to the power of 2 space end exponent equals space 169 space minus space 144
A D to the power of 2 space end exponent equals space 25
A D space equals space square root of 25
A D space equals 5
A D space equals h space equals 5

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