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sarahgrindstaff123
30.03.2021 •
Mathematics
My twin lives at the reverse of my house number. The difference between our house numbers ends in two. What are the lowest possible numbers of our house? its a math riddle good luck :)
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Ответ:
18
Step-by-step explanation:
If CD is the altitude, then AB is the base. The area of a triangle is
The distance between two points
and
is
The base is the length of AB
=![\sqrt{(-7-(-1))^2+(-1-5)^2}](/tpl/images/0516/9200/9be00.png)
=![\sqrt{(36+36)}=\sqrt{72}=6\sqrt{2}](/tpl/images/0516/9200/72d6c.png)
The height is the length of CD
=![\sqrt{(0-(-3))^2+(0-3)^2}](/tpl/images/0516/9200/32b87.png)
=![\sqrt{(9+9)}=\sqrt{18}=3\sqrt{2}](/tpl/images/0516/9200/410fd.png)
The area of triangle ABC is