Answer:
ST = 12 units
Step-by-step explanation:
As RA is parallel to ET, the angle in R is equal to the angle in T, and the angle in A is equal to the angle in E, so the triangle RAS is similar to the triangle SET.
If RT is 21 units, we have that RS + ST = 21 -> RS = 21 - ST
Using a rule of three with the sides of the triangle (as they are proportional), we have:
RS / ST = AR / ET
(21 - ST) / ST = 6 / 8
4 * (21 - ST) = 3*ST
84 - 4*ST = 3*ST
7*ST = 84
ST = 12 units
Answer:
1/2=0.5
Step-by-step explanation:
¼=0.25
¾=0.75
Answer:
B,C
Step-by-step explanation:
1. (8+4) x 2 = 8 + (4 x 2)
(12) x 2 = (8) + 8
24= 16 - not true
2. When you distribute you times everything in the parenthese with the number on the outside.
Answer:
2 is the answer
Step-by-step explanation:
2x/3+x/3-2=0
Now take lCM of all the three term,
3x/3-2=0
Now you have solve it
x=2
Answer:
It is known that the sum of the two sides of a triangle is greater than the third side, so,
thirdside<5+7
thirdside<12
And,
thirdside>7−5
thirdside>2
Therefore, 2<thirdside<12.
Hence, the third side of the triangle falls between (2,12).