Answer:
84 in²
Step-by-step explanation:
The side lengths of the triangle are 3 consecutive integers whose sum (the perimeter) is 42. The average of those integers, 42/3 = 14, is the middle of the three, so they are 13, 14, 15. We're told the perimeter is in inches, so all of these dimensions are inches.
These are the last three of 4 consecutive integers, so the first, the height of the triangle, is 12. The base of the triangle is the 3rd of the four integers, so is 14. Then the area is ...
A = (1/2)bh = (1/2)(14)(12) = 84 . . . . . square inches.
Step-by-step explanation:
hope it helps you
i think your question was this only
Answer:
767 houses
Step-by-step explanation:
Initially there are 3212 houses in the city.
After the boom there are 3979 houses in the city.(due to boom there is an increase in the number of houses).
The number of houses developed by the developers is the difference between the number of houses before and after the boom.
The number of houses developed=3979-3212=767 houses
