The area of an isosceles triangle is 30 square units.if the base measure 6 units,find the length of the altitude and the ratio of the altitude to the base?

What's the formula for the area of a triangle?

How can you use it to solve your problem?

Remember the formula:
Area = 1/2 * base * altitude

Area A = 30 sq. units
Base b = 6 units
Let altitude = a

A = 1/2 * b * a
A and b are known. From above formula, you can calculate a.

So you got the altitude. This is first question. Second question is to find the ratio of the altitude to the base.
The ratio is a/b
You know both a and b. So you can find ratio.
Let me know if you need further help.