Question

One leg of the right triangle is 20cm. and the hypotenuse is 10 cm. longer than the other leg. Find the lengths of the unknown sides?

Answer 1

\[10\sqrt{?}\]

Answer 2

10sqrt5

Answer 3

i need solution please

Answer 4

solution please..

Answer 5

(20+10)^2=20^2+b^2
30^2-20^2=b^2
900-400=b^2
10sqrt5=b

Answer 6

thanks..

Answer 7

c^2=a^2+b^2
c=hypotenuse,a=other side,b=20
(a+10)^2= a^2+(20)^2
a^2+20a+100=a^2+400
a^2-a^2+20a=400-100
20a=300
a=300/20=15
so length of unknown side is 15 and hypotenuse=15+10=25

Answer 8

soxh is wrong

Answer 9

OMG thanks

Answer 10

25 is the final answer

Answer 11

hypotenuse=25 and other side=15

Answer 12

can i aski another question

Answer 13

A and B start from a given point and travel on a straight road at average speed of 40 and 60 kph respectively. If be starts 3 hours after A, find the time and the distance they travel before meeting.

Answer 14

A and B start from a given point and travel on a straight road at average speed of 40 and 60 kph respectively. If be starts 3 hours after A, find the time and the distance they travel before meeting.

Answer 15

time_to_meet_after_b_starts=(3h*40km/h)/(60km/h-40km/h)=120km/(20km/h)=6h
time_to_meet_after_a_starts=3h+6h=9h
distance = 9h*40km/h = 360km,
can alternatively be calculated also
dsitance = 6h * 60km/h = 360km