Answer:
3, 14, and sqrt205.
2,9, and sqrt85.
Step-by-step explanation:
Check if they fit the Pythagoras theorem c^2 = a^2 + b^2:
3^2 = 9 , 14^2 = 196.
9 + 196 = 205 which is the square of sqrt205.
So this is a right angled triangle.
6^2 + 11^2 = 36 + 121
= 157 Not right-angled.
19^2 + 180^2 = 32761 Not right-angled.
3^2 + 19^2 = 370 Not right-angled.
2^2 + 9^2 = 85, So this is right angled..
Answer:
don't understand
Step-by-step explanation:
I think this is the steps your looking for.
Answer:
area=320m²
Step-by-step explanation:
perimeter=2(l+w)
72=2(l+16)
72/2=l+16
36=l+16
36-16=l
l=20m
area=l*w
=20*16
=320m²
Answer:
n = 95/14, or 6 11/14
Step-by-step explanation:
Let the number be n. Then:
n - 1 2/7 = 5 1/2.
Multiplying each term by the LCD (which is 14), we get:
14n - 18 = 77
Then 14n = 95
and so the desired result is n = 95/14, or 6 11/14
