What are the factors that attracted Muslims to India.

Islam in India existed in communities along the Arab coastal trade routes in Bengal, Gujarat, and Kerala as soon as the religion originated and had gained early acceptance in the Arabian Peninsula, though the first incursion through sea by the new Muslim successor states of the Arab World occurred around 636 CE or 643 ...

Explanation:

angle a = 40.6°

step-by-step explanation:

for any right angle triangle we know the pythagoras theorem reveals

hypotenuse² = height²+base²

by this formula we will calculate the length of hypotenuse

h² = 6²+7²

⇒ h =√36+49 = √85 = 9.22

now from the given triangle sin a = height/ hypotenuse

                                                sin a = 6/9.22 = 0.651

therefore

so angle a = 40.6°

i believe 5 is correct answer