Question

please answer this question urgently​

Answer 1

Given: A triangle with CD = 17 m, BD= 8 m and AD=4 m

To find: The value of AC?

Solution:

Now we have given that B is right angled.

Using pythagoras theorem, we get:

                    BC² + BD² = DC²

                    BC² = DC² - BD²

                    BC² = 17² - 8²

                    BC² = 289 - 64

                    BC² = 225

                    BC = 15 m

Now again using pythagoras theorem, we get:

                    AB² + BC² = AC²

                    (AD + DB)² + BC² = AC²

                    (4+8)²  + 15² = AC²

                    AC² = 12² + 15²

                    AC² = 144 + 225

                    AC² = 369

                    AC = √369 = 19.20 m

Answer:

               So the value of AC is 19.20 m

3/30/2021

Answer 2

Answer:

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