12cm
9\(\sqrt{2}\)cm
6\(\sqrt{2}\)cm
6cm
3\(\sqrt{2}\)cm
Correct answer is C
Two angles of a triangle are 45º each and its longest side is 12cm, this simply describes an isosceles triangle
two equal angles and two equal sides
using Pythagoras theorem,
\(x^2 + x^2 = 12^2\)
\(2x^2\) = 144
\(x^2\) = 72( after dividing b/sides by 2)
x = \(\sqrt{72} = 6\sqrt{2}\)cm.
12.8cm2
25.7cm2
77.0cm2
154.0cm2
179.7cm2
Correct answer is D
No explanation has been provided for this answer.
3.9 × 10-1m3
3.9 × 10-2m3
3.9 × 10-3m3
3.9 × 10-4m3
3.9 × 10-5m3
Correct answer is D
No explanation has been provided for this answer.
3.0km
12.04km
17.2km
34.18km
36.61km
Correct answer is E
No explanation has been provided for this answer.
Simplify 2a2 -4ab - 6a2 - 10ab + 5ab - 5a2
-9(a + b)
9(a + b)
-9a (a + b)
9a(a - b)
9b(a + b)
Correct answer is C
No explanation has been provided for this answer.