300/15 = d
I hope this helps!
Answer:
The base is 4cm and the height is 5cm.
Step-by-step explanation:
This is a solve the system question. Call H the height of the triangle and B the base. The question tells us:
and
Sub the first equation into the second (as H is already isolated). You will end up with a quadratic equation - solve that any way you wish (e.g. quadratic formula). I've provided the factored form below which shows you the roots:
In this question, we take B=4. You can't have a negative side length so the other answer is eliminated. Now sub the value for B into either of the original equations. I'll use the first, again because H is already isolated:
Answer:
4ft
Step-by-step explanation:
Answer:
66
Step-by-step explanation:
B is 57
C is 57
180 - (57 x 2) =
180 - 114 = 66
Oh yeah mr boy atleast 20 characters