Answer:
use symbolab
Step-by-step explanation:
For first question, What is approximate value of "......" this part is missing so please write whose approximate value question is asking to find
For second question we have to find 
In right triangle ABC as show in attachment,
----(1)
Now AB is given by distance of point A from x axis which will be given by its y - coordinate. So 
Similarly BC is the distance of point A from y axis (horizontal distance ) and that will be given by x coordinate of A. So 
Plug these values in equation (1)

To divide fractions we flip (reciprocal ) bottom fraction and multiply it to top fraction as shown

Now 2 in top and bottom cancels out so we are left with

so thats the final answer for 
Math is used in a lot in the real life its just really hard for us to notice.When we are cooking we have to take measurements of the ingredients.When we are trying to check if a product at the store that is 20% off we have to use math to figure out how much we save and/or how much we have to pay for the product.If you want to decorate your house than you will also have to take measurements to figure how much space you have to work with.When renting a car,say it takes $50 per day.You will use it for a week then you will have to calculate how much you will have to pay,$50 times 7 is $350.
You cant if you are trying to figure out what the factors are