I even gave you something to help, and you’ll receive 100points Calculate the surface area of each pyramid with the following values. (P = perimeter, b = one side of the base, s=side, h=height). Number of sides is given in each problem. The first two have hints to let you know what the shape of the base is.

1. P = 12 ft, s = 4 ft, b = 4 ft, h=2 ft, 3 sides (base is a triangle)

2. b = 4 in, P = 16 in, s = 12, 4sides (base is a square)

3. P = 48 m, b = 12 m, s=12, 4sides

4. P = 45 yds, b = 15 yds, s=15, h=12, 3 sides

5. b = 6 ft, P = 24 ft, s=6, 4sides

6. P = 15 ft, b = 5 ft, s=5 ft, h= 4, 3 sides

7. b = 4 in, P = 16 in, s=11, 4sides

8. P = 40 m, b = 10 m, s=10, 4sides

9. P = 45 yds, b = 15 yds, s=10, h=8, 3 sides

10. b = 16 ft, P = 64 ft, s=8, 4sides

11. b = 5 ft, P = 20 ft, s=7, 4sides

12. P = 45 ft, b = 15 ft, s=10, h=8, 3 sides

13. b = 13 in, P = 52 in, s=11, 4sides

14. P = 28 m, b = 7 m, s=8, 4sides

15. P = 27 yds, b = 9 yds, s=30, h=25, 3 sides

Match each statement with its corresponding value for the system below: y = -2(3)x and y = 9x - 2 1. the number of points of intersection. -2 2. the x-coordinate of the solution. 1 3. the y-coordinate of the solution. 0

You need to solve a system of equations. you decide to use the elimination method. which of these is not allowed? 3x - 2y = 7 3x + 4y = 17 equation 1 equation 2

In δabc shown below, ∠bac is congruent to ∠bca: triangle abc, where angles a and c are congruent given: base ∠bac and ∠acb are congruent. prove: δabc is an isosceles triangle. when completed (fill in the blanks), the following paragraph proves that line segment ab is congruent to line segment bc making δabc an isosceles triangle. (4 points) construct a perpendicular bisector from point b to line segment ac . label the point of intersection between this perpendicular bisector and line segment ac as point d: m∠bda and m∠bdc is 90° by the definition of a perpendicular bisector. ∠bda is congruent to ∠bdc by the definition of congruent angles. line segment ad is congruent to line segment dc by by the definition of a perpendicular bisector. δbad is congruent to δbcd by the line segment ab is congruent to line segment bc because consequently, δabc is isosceles by definition of an isosceles triangle. 1. corresponding parts of congruent triangles are congruent (cpctc) 2. the definition of a perpendicular bisector 1. the definition of a perpendicular bisector 2. the definition of congruent angles 1. the definition of congruent angles 2. the definition of a perpendicular bisector 1. angle-side-angle (asa) postulate 2. corresponding parts of congruent triangles are congruent (cpctc)