Question

Please help me with this question

Answer 1

8

Explanation:

The formula to calculate BC is wrong.(h^2=p^2+b^2=correct)

BC^2+Ab^2=AC^2

BC^2=Ac^2-Ab^2

BC^2=10^2-6^2

BC^2=100-36

sqrtBC^2=+/- sqrt 6BC=8

therefore,BC=8

Answer 2

BC = 8 units

Explanation:

Mistake lies in the Step 1:

Since, 10 is the length of hypotenuse and 6 is length of one of its leg.

`\therefore 6^2 +10^2 \\eq BC^2`

The length of BC can be given as:

`\therefore 6^2 +BC^2 = 10^2 \\</p><p>BC^2 = 10^2 - 6^2 \\</p><p>BC^2 =100-36\\</p><p>BC^2 = 64\\</p><p>BC =\pm√(64)\\</p><p>BC = 8 \: units </p><p>`