xxlemonayaxx
xxlemonayaxx xxlemonayaxx
  • 03-11-2020
  • Mathematics
contestada

Could someone help for my sister?

Could someone help for my sister class=

Respuesta :

316628
316628 316628
  • 03-11-2020

Answer:

See Below

Step-by-step explanation:

Thankfully, all the parts you need are given.

First, find the surface of one triangle

A = 1/2bh

A = 1/2(15)(9)

A = 1/2(135)

A = 67.5

Multiply by 4 to get the sum of all the sides.

67.5(4) = 270

Now find the surface area of one square

A = bh

A = (15)(15)

A = 225

multiply by 5 to get all 5 sides

225(5) = 1125

Add sums together

1125 + 270 = 1395

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