Answer:
30,60,90
Step-by-step explanation:
A triangle’s interior angles sum to 180.
1:2:3 ratio
180 divided by 6 (add up the ratio numbers)= 30. Use 30 in the ratios.
(30x1=30, 30x2=60, 30x3=90)
30,60,90
30+60+90=180 (add back up to make sure they sum to 180 to check your answer)
Answer: 10n^2 - 10
Step-by-step explanation:
(5n - 5)(2+2n) becomes (5n-5)(2n+2)
= (5n)(2n) + (5n)(2) + (-5)(2n) + (-5)(2)
= 10n^2 - 10
Answer:
See below in bold.
Its the second choice.
Step-by-step explanation:
The sides b and d are the legs of a 30-60-90 triangle so the sides are in the ratio 2 : 1 :√3 where 2 = the hypotenuse.
Here the hypotenuse = 10. Therefore:
10 = 2*5, so d = 1/2 * 10 and b = √3*5.
d = 5 , b = 5√3.
Now a , b and c are also the sides of a 30-60-90 triangle and we know that b = 5√3.
So a ( the hypotenuse = 2 * 5√3 = 10√3.
and c ( the longest leg) = 5√3 * √3 = 15.
Answer:
c
Step-by-step explanation: