What is the surface area of the square pyramid below?

8 cm
5 cm

5 x 5 = 25

Square formula.

Length x width

Triangle formula

Height x Bottom line / 2

8 x 5(it is a square so all sides are 5)  = 40/2 = 20.

There are 4 triangles so 20 x 4 triangles = 80

80 + the bottom square of 25 = 105

105 cm would be your answer.

Step-by-step explanation:

Hope this helps can I have brainliest

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8  

alright so i think for this one it would to draw it out. this may be hard for me to try and draw, but i will do my best on here:

        r

  /       |     \

notice how it forms 2 triangles inside one bigger triangle.

so if we know the angle spr is the same as psr that is saying the measure of angle p is the same as angle s. this means the big triangle psr is either isosceles or equilateral. in both cases, the triangle is perfectly symmetrical when split down the middle, which is in this case rq. because we know it is perfectly symmetrical on both sides, we know that the two triangles inside the bigger one are equal.