Question

Hello pls help me in the question in the picture... thanks

Answer 1

find this with the help of right angle theorem

AD=10 square -8 square =100-64=36

DC=17 square -8 square =289-64=225

now add this you will get the answer

Answer 2

Answer:

21cm

Step-by-step explanation:

In ∆ABD

Using Pythagorean theorem

(AD)²+8²=10²

(AD)²+64=100

(AD)²=100-64

(AD)²=36

AD=6cm

In ∆BDC

(CD)²+8²=17²

(CD)²+64=289

(CD)²=289-64

(CD)²=225

CD=15cm

as AC=AD+CD

AC=6+15

AC=21cm