Galileos - Find The Missing Number.

For most of this week I was sick so this my first day at school this hole week, so it feels like Monday! Today is mufti day for the terrible thing that has happened in Christchurch this time last week. All of our heart are with Christchurch and the loved on and family of the one affected.

For our group work sheets we had to find the missing number and fill it in. I quickly wiped this up during maths today. 

Can you find the missing number of this equation?  (It's a squared if your wondering!!)

    2

𝅫 = 49 𝅫 =?