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Ann [662]
3 years ago
15

Help please! :) Its really late and cant process that much math, i did the others, but this first one confused me.

Mathematics
2 answers:
Feliz [49]3 years ago
8 0

Answer:

150 in^2

Step-by-step explanation:

1/2*25*12=150

note: the number 20 and 15 doesn't matter as the formula for triangle is 1/2*w*h

but im sorry if it might be incorrect

Vera_Pavlovna [14]3 years ago
4 0
Use pythagorean theorem to find the bottom side of the left triangle.
12^2+b^2=15^2
144+b^2= 225
b^2= 81
b=9
you will then subtract 9 from 25 to get 16
area from the triangle on the right
A=(1/2)16*12
A= 96 in^2
then for the triangle on the right
A= (1/2)12*9
A= 54 in^2
then add the two areas together

Total Area= 150 in^2
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