Question

Please solve these ques. I am in class 7 only.​

Answer 1

Answer:

In 7th question you can prove by SSS test of congruence

In 8th question first prove two triangles congruent by hypotenuse side test and then you can prove that OA=OB

In 9th question you can prove them congruent by hypotenuse side test

Answer 2

Answer:

7) by sss th.

AB=AD

BC=DC

AC is common

therefore triangle and congruent to triangle adc