The answer is c bc I just know
We have that
scale factor=1 in/2.5 miles
<span>the actual area of a lake is 12 square miles
</span>we know that
[area on the map]=[scale factor]²*[area actual]
[area on the map]=[1/2.5]²*[12]-----> 1.92 in²
the answer is
1.92 in²
The Answer is -3 it would be easier to use a calculator for that than this
Answer:
Step-by-step explanation:
As the the length of the segments BC = AC, so the triangle ABC must be an isosceles triangle.
As CD ⊥ AB, it means the base AB gets bisected by CD, making two congruent angles named as ∠ACD and ∠BCD. As shown in attached figure.
CD bisecting the base AB into two equal parts means if AB = 4, then
the length of AD = 2 and the length of DB = 2. Hence, AD = DB
As BC = AC, it means these two equal sides of isosceles triangle would make equal angles on the opposite side. Hence, angle ∠A and ∠B would be equal as shown in attached figure.
As CD is bisecting the base AB into two equal parts. Hence, it can be treated as the part of two right triangles named ACD and BCD.
So, the length of AC can be easily determined using using the Pythagoras formula.
So,
c² = a² + b²




Hence
Keywords: isosceles triangle, hypotenuse, hypotenuse
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Answer:
12
Step-by-step explanation:
144 chairs in total.
the room is square, this means that the number must be multiplied by the same number
12x12= 144
there are 12 chairs on the first row.