Answer:
i believe the answer is c
Step-by-step explanation:
but a also seems right as 3:6 is 1/2. despite that i belive c is correcr
1 can go into anything so that is the mystery number sorry if not right first time on here
If its a right-angled triangle you can find the third side if the length of the other 2 sides are known. Use the Pythagoras theorem.
If you have 2 triangles which are similar and you know the length of one or more sides of one of them then you can find the lengths of corresponding sides in the second triangle.
He has seven models because 21 divided by 3 is seven
<u>1) Rewrite it in the form a^2-2ab+b^2, where a=11m and b=9</u>
(11m)^2-2(11m)(9)+9^2
<u>2) Use Square of Difference: (a-b)^2=a^2-2ab+b^2</u>
(11m-9)^2
<u>Your answer is (11m-9)^2</u>
