The pyramids below are similar. The surface area of pyramid B is 54 +13.5√3ft^2. Find the length of the apothem of pyramid A in simplest radical form.​

Lilianna uses 3/4 calories per minute just by sitting. she uses 1 more calorie per minute by walking. lilianna uses a total of 12 1/4 calories walking to the park. lilianna uses the equation, d(.75+1)=12.25 to represent the situation. what does the variable d represent in the equation?

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

Select the lengths in centimeters that would form a right triangle