Geometry Practice Test 1

Question : 7 of 40

Marks: +1, -0

If ΔABC is an isosceles triangle with ∠C = 90° and AC = 5 cm, then AB is:

Solution:

∠C = 90°
AC = 5 cm = BC
AB = x
By Pythagoras theorem,

(AB)^^2

(BC)^2+(AC)^2

x^2

(5)^2+(5)^2

x^2

= 50
x =

5√2

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