side of the triangle = 12 inches
side of the square = 8 inches
12 is 4 more than 8
perimeter of the square = 4(8) =32 inches
perimeter of the triangle = 3(12) = 36 inches
36 is 4 more than 32
Let T= side of the triangle and S = side of the square
3T = 4S+4
T=S+4
3(S+4) = 4S+4
3S+12 = 4S +4
4S-3S = S = 12-4 = 8
T =8+4 = 12
From a lamp post four feet away from her, Sandra looks up and sees a bird. Diagonally, the bird is five feet away from her. How high up is the bird.
3
Answer:
Step-by-step explanation:
To find the value of x, using Pythagorean theorem.
7) x² = 12² + 12²
= 144 + 144
= 288
x = √2*12*12
x = 12√2
8) x² + 9² = 18²
x² + 81 = 324
x² = 324 - 81
x² = 243
x = √3*9*9
x = 9√3
