Question

work out the length of x 14cm 7cm

Answer 1

Using the Pythagorean Theorem, we know that a^2+b^2=c^2, c being the hypotenuse and a being the shorter of the legs. So, we can do x^2+7^2=14^2. 7^2=49, 14^2=196.

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Answer 2

The correct answer is written down below:

Explanation:

• Using the Pythagorean Theorem,
• We know that $a^2+b^2=c^2$, c being the hypotenuse and a being the shorter of the legs.
• So, we can conclude that, $x^2+7^2=14^2$
• We know that $7^2=49$ and $14^2=196$
• Therefore, $x^{2}= 149 - 49$, $x^{2} = 100$
• So, $x^{} = 10$
• So, the correct answer is 10.