joshyfielding joshyfielding

30-07-2019
Mathematics

contestada

What’s the surface area of a regular pyramid if the base is 7 and the height is 10

Respuesta :

ManicMath ManicMath

30-07-2019

Answer:

Step-by-step explanation:

the base is a square, and then there are four triangles that meet at their tip.

so you need to find the area of the base, and the four triangles.

base-l*w=7*7=49

triangles=1/2*b*h*4=1/2*7*10*4=35*4=140

140+49=189

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