Question

7. Given a right triangle as shown below, use a calculator to estimate the length of the

missing side to the nearest tenth of a centimeter

Answer 1

Explanation:

11.16

Answer 2

D. 11.6 cm

Explanation:

The missing length of the right angled triangle can be calculated using Pythagorean Theorem as shown below:

`c^2 - b^2 = a^2`

Where,

a = x cm

b = 11 cm

c = 16 cm

Thus:

`16^2 - 11^2 = x^2`

`256 - 121 = x^2`

`135 = x^2`

`√(135) = √(x^2)`

`√(135) = x`

`11.61895 = x`

`x = 11.6 cm` (nearest tenth)