A = 14*21 + 20*7 + 6*(20-8-66) + 4*21
A = 294 + 140 + 36 + 84
A = 554 ft².
Hope this helps !
Photon
Answer:
20. 13 cm
21. 12 cm
Step-by-step explanation:
20. isosceles means two sides are the same length, so you take the ten off the perimeter to get 26 remaining cm (36 -10) and you then divide that by two to get both sides of 13 cm (26 / 2)
21. because you know that if you split the triangle down the middle you get a right triangle and you can use a^2+b^2=c^2 to find the height, so we take the one side of 13 cm and half of the third side, which is 5, and you can find your answer (a^2 + 5^2 = 13^2 ---> a^2 + 25 = 169 ---> a^2 = 144 ---> a = 12)
Are you asking for the height of the tree? If so, the answer is 17.5 ft.
Be more precise next time, and I hope this helps.
You are inversing for subtraction which is addition so D
Slope of JK = 2/3
Slope of KL = -3/2
Slope of LM = 2/3
Slope of MJ = -3/2
