D=rt
Divide the t from both sides
D/t=rt/t
The ts on the right will cancel each other out leaving
D/t=r
ANSWER: C. 80
10(n-6)
substitute n with 14
10(14-6) = 80
Answer:
(13) The third side is 14 cm
(13) The third side is 16.1 cm
Step-by-step explanation:
Given
(13) & (14)
Required
Solve
(13): Let length AB = x.
Using Pythagoras theorem.
Take positive square root of both sides
(14): Let length DE = x.
Using Pythagoras theorem.
Take positive square root of both sides
---approximated