21, 28, and 35 are multiples of 7. So you can divide each number by 7 (in other words scaling the triangle down by a scale factor of 7).
It becomes 3,4,5, which is the base Pythagorean triple.
3^2 + 4^2 = 5^2
9 + 16 = 25
3x-12= 3x + 7
+12 +12
3x = 3x + 19
-3x -3x
x = 19
Answer:
i need pionts bbut it is b
Step-by-step explanation:
Answer:
The correct answer is B. 3 ft, 6 ft, 5 ft
Step-by-step explanation:
A right triangle has side lengths that equal 90 degrees
3 x 6 x 5 = 90 ft.
Multiple 18% by 600 and then multiply the number you get from that by 24 and add that number onto 600 and that’s your answer