First, we find how much 1 baseballs card costs.
1 card = 0.60
12*0.6 = $7.20
Answer:
The area of the triangle is 351cm^2.
Step-by-step explanation:
To find the area of a triangle, the formula is (1/2) x base x height. In this case, the height would be a line that cuts straight through the center of the triangle. However, this height is not given to us. We can still find it through Pythagoras' Theorem though.
Let A be the tip of the triangle, and B and C be the points on either side of the triangle. Assuming an imaginary line that cuts the triangle in a symmetrical half, let T be the point at the end of the line, directly below point A.
Using Pythagoras' Theorem,
AB^2 = AT^2 + TB^2
AT^2 = AB^2 - TB^2
AT^2 = 30^2 - (26/2)^2
AT^2 = 30^2 - 13^2
AT =
![\sqrt{ {30}^{2} - {13}^{2} }](https://tex.z-dn.net/?f=%20%5Csqrt%7B%20%7B30%7D%5E%7B2%7D%20%20-%20%20%7B13%7D%5E%7B2%7D%20%7D%20)
AT = 27.0370116692
So the length of AT is our height. We can now find the area of the triangle.
Area of triangle = (1/2) x 26cm x AT
Area of triangle = 351.4811516996
Area of triangle = 351cm^2 (To 3s.f.)
Answer:
5/4
Step-by-step explanation:
125/100
(divide through by 25)
5/4