The base angles are congruent because it's an isosceles triangle the base angles would both equal 81
Answer:
The answer is -25
Step-by-step explanation:
You add -2 to get rid of it making it -5 then you multiply 5 by itself and you do that to both sides and get Y= -25
(sorry if it doesn't make sense)
The answer for A would be 8.5 because if you use a^2+b^2=c^2 you would have 12^2 which equals 144 and you would divide that by two to get 72 and then take the square root to find the side length
The answer for be would be 45 because the sum of all angles in a triangle is 180 and you already know one is 90 and 180-90=90 and because this is an isosceles triangle you know the two bottom angles are equal so 90/2=45 <span />
<u>G</u><u>i</u><u>v</u><u>e</u><u>n</u><u> </u><u>:</u><u> </u>
- <u>length</u><u> </u>= 12km
- <u>brea</u><u>d</u><u>t</u><u>h</u><u> </u>= 2km
<u>To</u><u> </u><u>find</u><u> </u><u>:</u><u> </u>
<u>F</u><u>o</u><u>r</u><u>m</u><u>u</u><u>l</u><u>a</u><u> </u>:
- Area of rectangle = length × breadth .
<u>procedure</u><u> </u><u>:</u>
putting value of the given data into formula :
Area of rectangle = 12km ×2 km
= 24km ^2
Ans = 24km^2
