Answer:
7.8 cm and 25.3 cm
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
?² + 7² = 10.5²
?² + 49 = 110.25 ( subtract 49 from both sides )
?² = 61.25 ( take the square root of both sides )
? =
≈ 7.8 cm ( to 1 dec. place )
Then
P = 10.5 + 7 + 7.8 = 25.3 cm
Answer:
The common multiple is 18
Step-by-step explanation:
Because 9*2=18 and 18*1=18
-6/7<1/7
A negative is always less than a positive number.
Answer:
68,643
Step-by-step explanation:
work backwards
261×263=68,643
68,643÷263=261