BRAINLIST QUESTION
Solve fast
needed for tomorrow's exam
Answers
Answer:
Step-by-step explanation:
(iv)let it be ABC triangle
AB=24
BC=7
AC=X
by pythagoras theorem
AC²=AB²+BC²
AC²=(24)²+(7)²
AC²=576+49
=625
AC=√625
=25
(v)let it whole be ABC triangle and D on side BC which is equal to x
in first part or in triangle ABD
AB=AC=37
AD=12
AB²=AD²+BD²
BD²=AB²-AD²
=(37)²-(12)²
=1369-144
BD²=1225
BD=√1225
=35
now in second part or in the ADC triangle
AC²=AD²+CD²
CD²=AC²-AD²
=(37)²-(12)²
=1225
CD=√1225
=35
So, BC=35+35
=70
(vi)let it be triangle ABC with sides 12 and 3
AB=x
BC=3
AC=12
AC²=BC²+AB²
AB²=AC²-BC²
=(12)²-(3)²
=144-9
=135
AB=√135