Question

A, B, and C form a triangle where BAC = 90 degrees. AB=10.8mm and CA=1.6mm. Find the length of BC, give your answer rounded to 1DP.

Answer 1

To find the length of BC in triangle ABC, use the Pythagorean theorem: BC^2 = AB^2 - CA^2. Calculate BC using the given values and round to 1 decimal place.

Step-by-step explanation:

To find the length of BC in triangle ABC, we can use the Pythagorean theorem. Since BAC is a right angle (90 degrees), we can use the theorem to find the length of BC.

First, let's label the sides of the triangle. AB is 10.8mm and CA is 1.6mm. We want to find BC. According to the theorem, BC^2 = AB^2 - CA^2.

Plugging in the values, we get BC^2 = 10.8^2 - 1.6^2. Solving this equation, we find BC ≈ 10.6mm (rounded to 1 decimal place).