Question

please help..... in 5,6,7,8,9

Answer 1

a² +b²=(5√2)²

both are equal

therefore  a²+a²=5*2

a²+a²=10

2a²=10

a²=5

a=√5

this was 5th one

now 7th one

1251/3 can be written as ∛125

so cube root of 125 is 5

so ∛125= 5

8th on e

supplementary angle of 60

180°-65°=115°

i dont know the better answer for reflex angle

hope this may get u some part of it