Answer:
4
Step-by-step explanation:
Answer:
P=30cm
Step-by-step explanation:
So the formula there is to find the Perimeter of the rectangle, so we are going to use it!
Using Substitution:
Hope this helps!
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Answer:
3.45
Step-by-step explanation:
you have to do tihis then that
8.8, you have to find the distance between each dash and see if the two number lines on #11 match.
Answer:
4cm^2
Step-by-step explanation:
First we need to find the length of the height of the triangle using Pythagoras:
a^2+b^2=c^2 (Substitute in what we have)
a^2+3√2(^2)=2√5(^2) = a^2 + 18 = 20 -> 20-18=2 √2=BD
Now we can find the area:
AD+DC= 3√2 + √2 = 4√2 x √2 = 8/2 = 4
